• Ecotrackers Foundation - Non-profit organization of international volunteers and students working to preserve the cultural and biological diversity of Ecuador.
• Ecotravel.com - On-line magazine with directory of operators, lodges, private guides, organizations, and ancillary travel services..
• EcoVentures Nature Tours and Travel - Offering guided small group tours and customized tours for individual travelers.
• Ecovolunteer - Information for travelers volunteering to participate in environmental projects worldwide.
• Environmental Adventure Company - Itineraries and guide profiles for wildlife and cultural travel experiences in North and South America.
• Exotic Worldwide Adventures - Ecotours in Venezuela and the Western United States.
• Fischer Outdoor Discoveries - Offers wildlife tours of Yellowstone and Glacier National Parks, Alaska, and Botswana, with news and testimonials.
• Footloose Forays - Selection of small group educational trips into the natural world, from day trips to three week adventures.
• Global Research on Wildlife - Offers hands-on research and conservation experience and training with expert biologists.
• Green Travel Network - Yahoo groups forum with focus on sustainable tourism.
• Greentours Natural History Holidays - UK based company offers worldwide natural history tours.
• Hosking Tours - Details and itineraries for photographic tours and safaris to a range of destinations.
• International Wildlife Adventures - Offering trips around the world to observe and photograph wildlife including polar bears. Led by professional photographers and naturalists.
• Journeys International, Inc. - With more than 300 eco-trips to 45 worldwide destinations for nature and culture explorations.
• Kalahari Management Inc. - Information and consultancy for the ecotourism industry.
• La Hesperia - Volunteer working programs at La Hesperia biological station and cloud forest reserve in central Ecuador. Includes requirements and conditions, rates, FAQ, and program details.
• Lindblad Expeditions - Provider of small ship cruises presents itineraries, schedules, prices, and daily expedition reports.
• Manaca Ecotravel - Offers worldwide tours. Includes destination details with ecological assessment ratings.
• Moloney Hand-Built Trips - Personally guided wildlife expeditions worldwide.
• Naturetrek - Selection of international tours, treks and cruises guided by British naturalists.
• New Jersey Audubon Society - Information on North American and International Eco-tours focused on birds and other wildlife.
• One World Journeys - Offering expeditions dedicated to connecting people with the planet. Includes schedules, past journeys, and environmental articles.
• Planeta.com - Virtual library archiving more than 8,000 pages about ecotourism and conservation. Includes contacts and bibliographies.
• Reef and Rainforest - Offers educational family adventure holidays worldwide.
• ResponsibleTravel - Ethical travel resource providing information about the environmental impact of tourism, respect for local cultures and laws, photography, and banned souvenirs.
• Sustainable Travel International - Non-profit organization that supports and promotes ecotourism, through education and outreach. Includes employment opportunities and programs.
• Tours of Exploration - Offers soft adventure, bird watching, wildlife viewing, natural history, culture, and ecotourism programs worldwide
• Travelroots - Presents destination information for responsible, ecologically sustainable holidays worldwide with useful links and tips.
• Voyage of the Wanderbird - Operates long distance sailing cruises that provide informal education and interactive wildlife research projects.
• Wildspace Expeditions - Personalized Indian and African wildlife tours catering to small private groups.
• WildWatch Tours - Offer escorted wildlife and photographic tours. Includes destination information, guide profile, and enquiry form.
• World Primate Safaris - Presents destination and accommodation options, suggested itineraries, terms and conditions, and contact details.
• Worlds Together Travel Network - Immersion travel and cultural opportunities in Jamaica, Dominica Republic, Belize, and Egypt. Includes destination information and trip reports.

Associations

• Aboriginal Tourism Canada - National organization with mission to influence and develop tourism policies and programs to benefit Aboriginal people in Canada.
• Alaska Wilderness Recreation & Tourism Association (AWRTA) - Members trade association formed to promote sustainable tourism in Alaska. Site includes a directory of approved members who abide by agreed Ecotourism guidelines.
• Association of Small Scale Enterprises in Tourism - Established to bring together, advocate for, and promote small enterprises active in the Gambian tourism industry. Contains guidelines for visitors and guides, and information about Gambian culture.
• Ecotourism Australia - Non-profit organization operates an eco-certification program to identify genuine ecotourism and nature tourism operators in Australia.
• Ecotourism Society Pakistan - Dedicated to the cause of integrated tourism research and promoting sustainable mountain development with a particular focus on mountain eco-regions.
• Friends of Nature - Nepal - Service oriented non-governmental organization dedicated to promoting ecotourism and conservation of environment in Nepal.
• Hawaii Ecotourism Association - Mission is to preserve Hawaii's environment and culture through the promotion of responsible tourism practices. Includes liks to member operators.
• International Ecotourism Club - Network of ecolodges and operators. Includes articles and interviews with ecotourism experts.
• The Belize Ecotourism Association (BETA) - Serves as an advocate for conservation and ecologically sound development of tourism within the Belize Tourism Industry Association (BTIA) and Belize. The site contains current ecotourism issues, projects and practices.
• The International Ecotourism Society - Provides guidelines and standards, training, technical assistance, research and publications to foster sound ecotourism development, with membership in over seventy countries.
• Tourism Concern - Campaigns to reduce social and environmental problems connected to tourism. Includes guides to ethical tourism and educational resources for students and teachers, and members area with forums.

Birding

• AABirding and Travel - Australasian based birding and wildlife operator offering tours worldwide.
• Abberton Birdstay - Bed, breakfast and birding in Queensland, Australia's Lockyer Valley. Information about Abberton birds, area birding and guide to accommodations. Reservations available.
• Acacia Africa Birding Safaris & Holidays - Kenyan operator presents information, tour options and schedules, and reservation terms.
• African Treks - Custom designed guided birding and photo tours with specialist guides and naturalists to South Africa, Namibia, Botswana, and Zimbabwe.
• Alto Andino Nature Tours - Customized nature tours in the altiplano wilderness areas of northern Chile. Birding, wildlife, and trekking.
• Amazilia Tours - All inclusive packages with accommodations and meals, specializing in birds of Central America and the Caribbean Islands.
• Atypus Tours - Birdwatching, nature, and wildlife tours to the Czech Republic, Slovakia, and central Europe.
• Audouin Birding Tours - Day-trips, weekend and package tours in southeast Spain. Includes sighting reports, testimonials, terms and conditions, booking form and photos.
• Avian Research and Adventures - Birding tours in the Americas to Belize, Guatemala, Veracruz Mexico, New Mexico, and Arizona. Includes section on research on owls, raptors, and cavity-nesting birds in the western U.S.
• Bald Eagle Island Tours - Offers day and overnight packages at Lake Winnipeg, Manitoba, Canada.
• BBC Birdwatching Swiss Tours - Provides contact details and list of local species.
• Bird I.D. Company - Tours and holidays in Norfolk, England and customized tours anywhere in the UK.
• Bird Treks: Quality Birdwatching Tour Company - Tour schedule and descriptions for 1999 and 2000, plus background information and a printable registration form.
• Birdbox - Offers hosted seven day holidays in Spain the Catalan region of Spain, with itineraries and accommodation details.
• Birdfinders - Birdwatching holidays to locations worldwide. Based in Dorset, UK.
• Birding Africa - Features profiles, a tour calendar, destinations, trips reports and booking conditions.
• Birding Alto Andino Natural Tours - Providing natural history tours and guide service in Lauca National Park, Natural Monument Salar de Surire and Isluga National Park in Chile's high Andes.
• Birding and Beyond Safaris - East Africa - Small groups with local guides in Tanzania, Kenya, and Uganda.
• Birding in Belize - Paradise Expeditions presents bird checklist, site map and details of tours throughout Belize and Tikal Guatemala.
• Birding in Peru and Bolivia - Neotropical bird watching tours in Peru and Bolivia with experienced multi-lingual guides.
• Birding India Tours - Guide profiles, regional information, costs, and booking terms for catered tours throughout India.
• Birding London - Escorted trips to birding sites around London and southeastern England.
• Birding Peru - A online birdwatching resource for Peru, trip reports, online data base, bird photos, trip planner and where to find birds in Peru guide
• Birding Peru - Birding throughout Peru, Bolivia, and Chile, including the Manu Biosphere Reserve.
• Birding Peru - Peruvian birding tour company with itineraries and trip planning resources.
• Birding the EarthFoot Way - Profiles of numerous small scale, locally produced, independent, customizable birding tours worldwide.
• Birding Tours Australia - Presents itineraries, species information, booking form, and contact details.
• Birding Veracruz Tours - Birding in Veracruz Mexico with emphasis on habitat conservation and protection of migrant and resident species.
• Birdquest - Based in Lancashire, UK, with guided birding tours worldwide. Catalog, trip reports, and news.
• Birds for Africa Tours - Customized small group tours in southern Africa.
• Birdseekers - Specialised wildlife watching tours with an emphasis on birdwatching to destinations worldwide. Includes tour reports, brochure and photos.
• birdtours.co.uk - Birdwatching trip reports from around the world.
• BirdWatch Cape - Birding tours in Cape Town and the South African dry west, including pelagics. Half day, full day, and overnight tours covering the Cape Peninsula, the Karoo and the Kalahari Desert.
• Birdwatching Aficionados - Australia-wide customised birdwatching tours.
• Birdwatching and Bird Watching Turkey - Includes company profile, tour itineraries, sighting localities, ornithology, and tips.
• Birdwatching Australia - Birdwatching, ecotourism, and educational travel with Australian Wildlife Tours.
• Birdwatching Breaks - International birdwatching excursion company based in Kent.
• Birdwatching in Thailand by "Nature Trails" - Birdwatching holidays with experienced local naturalists.
• Boletas Birdwatching Centre - Tours and accommodation in the Spanish Pyrenees and northeastern Spain.
• Borderland Tours - Well-organized small group tours to premier birding, cultural, and natural history destinations around the world.
• Branta Tours - Specializes in developing and operating birding, nature, and wildlife tours in Bulgaria and Belarus. Provides trip and sighting reports, and photo gallery.
• Cape Town Pelagics - Dedicated seabirding pelagic trips, led by led by experienced local leaders about twice a month. Includes photo galleries and information on pelagic birds in South Africa.
• Cayaya Birding - Birdwatching and nature tours in Guatemala, guided by experienced field researchers.
• Cheesemans Ecology Safaris - Nature tours to the world's pristine natural habitats. Ecotours and photographic safaris offered to the world's most biologically active spots.
• Dakota Birding - Local guide offers specialized day trips, and group field trips.
• Denise Goodfellow, Australian Birder and Author - Five-day birding tours of the Darwin area.
• Discovering Doņana - Birding tours in southern Spain.
• Donana Bird Tours - Guided tours in Coto Donana, Spain, hosted by John Butler.
• Eagle-Eye Tours - Birdwatching tours to North, Central and South America
• EcoExperience Lake Dunstan - Offers personalized, non-impact, boat tour of Lake Dunstan's Bendigo Wetlands in Central Otago, New Zealand.
• Ecuador Explorer - Birdwatching Tour Operators - Annotated links to tour operators in Ecuador.
• E-Tours - Tour operator for the Czech Republic, Slovakia, and Hungary. Focuses on birdwatching, but offers bearwatching, agricultural, and other special-interest study tours.
• Exotic Birding - Includes schedules and prices, policies, packing list and tips, insurance information, and registration form for Guided tours in Belize, Costa Rica, Trinidad, and Panama.
• Explorama Lodges - Itinerary for the 8-day, year-round Amazon region birdwatching workshops based. Travel itinerary and contact information for Iquitos, Peru tour operators.
• Eyrie Birding Lodge - Premier South African birding locality, near Blyde River Canyon and Kruger National Park, guided by ornithologist Peter Milstein.
• Fantasia Adventure Holidays - Birdwatching holidays in Andalucia, Spain.
• Field Guides Inc. - Birding Tour company offering carefully designed, professionally guided, and worry-free birding trips worldwide.
• Focus On Nature Tours Inc. - Offers birding and nature tours in North, Central, and South America, Caribbean, Europe, and Asia, notably in Japan. Also pelagic birdwatching trips on the East coast of the United States.
• Focus Tours - birding tours & nature tours - Birding tours and environmentally responsible travel in South America.
• Gone Birding - Small group tours, guiding services, contract survey work, and wildlife filming and video production based in Sheffield, UK.
• Gran Peru Bird Tours - Bird watching and nature tours in Peru with schedules and prices.
• Heatherlea Birdwatching Holidays - Scottish birdwatching and wildlife holiday tour operator, offering a range of holidays throughout Scotland and some overseas locations.
• High Lonesome EcoTours, Inc. - Small group birding tours in the USA, Mexico and Belize
• Indicator Birding - Customized tours in eastern South Africa.
• Kazakhstan Birdtours - Organized and guided birdwatching tours and holidays to Kazakhstan.
• Key Birding Areas in Northern Australia - Birdwatching Tours/Safaris in Northern Australia from the tropical rainforests on the east coast to the inland arid outback, to mangroves and monsoon forests in the north.
• Kibbutz Lotan Birding Tours - Self and fully guided half- to seven-day birding tours in Israel.
• KingBird Tours - Expert operator of Asian birding tours. Highlights excursions, registrations, and tour itineraries.
• Kingfisher Tours - A birdwatching tour service in Hong Kong, China and Asia.
• Kirrama Wildlife Tours - Presents schedules, prices and guide profile for tours to Northern Australia and Papua New Guinea.
• Kolibri Expeditions and Marvelous Spatuletail Tours - Based in Lima, Peru with birding trips to all corners of South America. Tour schedules and trip reports.
• Lawson's Specialised Birdwatching and Photographic Tours - Specialist in southern Africa.
• Limosa Holidays - Tour details, leader profiles, and booking for from UK based operator offering small groups throughout the world.
• Lopez Island Birding Tours - Guided 3-day tour in Washington State's San Juan Islands.
• Mark Pretti Nature Tours - Birding and natural history adventures for individuals and small groups in southeast Arizona, Mexico, and Belize.
• Mark Smith Nature Tours - Mark Smith provides personalized bird-watching tours emphasizing natural and cultural history for small groups to worldwide destinations.
• Mazatlan Jungle Tour - A two hour bird watching cruise through the estuary in Mazatlan Mexico.
• Melody Kehl's Outdoor Adventures in Birding - Local guide based in Tucson, Arizona offers personalized tours. Includes her profile, an itinerary, rates, information about lodging, maps and travel tips.
• Mrs Simpson's Guest House. - Located in Watamu near Kenya's Sokoke forest offering creek and forest trips with in-house guides.
• Natures Wonderland Safaris - Schedules for small group birding and ornithological tours, ranging from 4 to 37 days, in Kenya.
• New Mexico Birdwatching - Birdwatching and other ecotours in New Mexico, led by Ryan Besser.
• North West Birds - Minibreaks in Cumbria, UK for very small groups with all in accommodation on a house party basis.
• Northern France Wildlife Tours - Birdwatching and wildlife tours in Northern France for countryside enthusiasts. Fully guided tours can be booked and full accommodation is also available.
• Oceanwings - Pelagic bird-watching trips off the Kaikoura Coast, New Zealand.
• Oriole Adventures - Birdwatching tours based in Norfolk, UK led by Ashley Saunders, including daily and customized tours. Destinations also include Cornwall, Lakes, Solway, and Fair Isle.
• Ornitholidays - Presents itineraries, prices, guide profiles, and photo gallery for worldwide birding holidays.
• Paradise Birding - Details of guided tours to California, Oregon, Texas, Washington, and Alberta, Canada. Also offers custom tours. Based in Sisters, Oregon.
• Pelican Safaris - Specialist birdwatching and wildlife safaris in southern Africa, Madagascar, and New Zealand with Mark and Jean Caulton.
• Peru Birding Tours - Tours of Manu, Tambopata, Cuzco, and elsewhere in Peru.
• Peter Ginn Birding Safaris - Specializes in tailor-made birding tours in Zimbabwe and neighboring countries.
• Royal Albatross Colony Tours - Dunedin's harbor (Otago Peninsula, New Zealand) provides a setting for historical and wildlife attractions including the worlds only mainland Royal Albatross Colony at Taiaroa Head.
• Seabirding Pelagic Trips - Pelagic birding trips from the North Carolina Outer Banks and Virginia Beach led by Brian Patteson. Full spectrum of pelagic birds and other animals. Based in Hatteras, NC.
• See Life Paulagics - Pelagic birding trips in Delaware and New Jersey led by Paul Guris.
• Sky Island Tours - Specializing in bird, butterfly, arthropod and natural history tours and educational programs in southern Arizona.
• Speyside Wildlife - Fully guided bird watching and wildlife holidays in Scotland, the Scottish Isles, and worldwide. Day guiding and tailored tours also available.
• Susquehanna River Birding and Wildlife Trails - Presents birdwatching tips, tour guide and interactive map of wildlife trails.
• Tanager Birding Holidays - Specialise in economic birdwatching holidays to Central and South America.
• Tanager Tours - Bird watching and combined nature and culture tours in Peru.
• Thailand Bird Watching - Specializes in 1-6 day birding and kayaking tours in Thailand.
• Tody Tours - Specializes in endemic bird species of the Dominican Republic.
• Toucan Tours - Guided birding tours with UK based, professional birders to South America. Scheduled departures or tailor-made itineraries.
• Travelling Naturalist Wildlife Holidays - Guided birdwatching tours and holidays, with destinations worldwide.
• Tropical Birding - Birding tours to South America, Africa, and Asia, with many tours to Ecuador, South Africa, and Namibia.
• Tucson Audubon's International Birding Trips - Excursions to key neotropical birding, nature, and cultural sites in Mexico and Central America.
• Tufted Jay Preserve - Details of accommodation and activities on 5,000 hectares of pine/oak forests in the Sierra Madre Occidental in Northwest Mexico.
• Ukrainian Birdwatching Centre in Lviv - Tours of 7-11 days for birds and mammals in Ukraine and the Ural Mountains.
• Ventures, Inc. - Birding tour company with day and weekend bird watching trips throughout the Carolinas and nearby regions, with small group size and a unique blend of birds, butterflies, and wildflowers. Skyland, NC.
• Vermont Bird Tours - Bird watching and nature touring organization. News, tours, outing schedule, registration, brochure and links.
• Victor Emanuel Nature Tours - Over 20 years of world-wide adventure birding and specialty nature tours.
• Villa Philadelphia - Bulgaria birding tours overview of guided trips led by Bulgarian ornithologists with information on packaged and customized tour options.
• Whooping Crane Boat Tours - Narrated boat tours to view endangered Whooping Cranes at the Aransas National Wildlife refuge.
• Wildlife ECO Tours in the Pyrenees - Five day escorted bird watching, climbing and walking tours with farmhouse accommodation in Ariege, France.
• WINGS - Worldwide birding tour company based in Tucson, Arizona. Travel packages, tour itineraries, and newsletters.
• World Birders - Bird watching tours worldwide with itineraries and prices, schedules, company and guide profiles, and booking form.

Dolphins, Manatees, Whales

• AirTank Divers - Offers small group tours between mid October and mid-March. Includes facts, and conservation information.
• Bill & Nowdla Keefe's Wild Dolphin Adventures. - Schedules and rates for week long excursions to observe, swim, and interact with the Spotted Dolphins of Bimini, Bahamas.
• Birds Underwater - Contains species information, schedules and prices, location, directions, and contact details.
• Butler's Swimming with Dolphins - Tauranga, New Zealand based operator presents photographs, information and booking details for a cruise with wild dolphins.
• Capt Mike`s Ultimate Manatee Tour - Daily houseboat tours on Crystal River, Florida, with rates and location map.
• Captain Victoria - Snorkeling and dolphin swims in the Florida Keys. Includes article excerpts, tour information and prices, photos, and contact details.
• Cetacean Watching - Whale watching search engine combined with contextually-relevant information on whale, dolphin, and porpoise species.
• Crystal River Manatee Dive and Tour - Provides rates and contact details, photo gallery, and sample video.
• Curacao Dolphin Academy - Interaction with dolphins for all ages. Includes reservations form, maps, photographs, press releases, contact information.
• Dolphin Adventure - Pictures and information about Pacific Bottlenose encounters, swimming with dolphin, training programs and marine mammal careers in Nuevo Vallarta, Mexico.
• Dolphin Cove - Research and educational facility providing tours and swim programs with Atlantic bottlenose dolphins at Key Largo, Florida.
• Dolphin Essence - Dolphin swims, seminars and whale watching in Kona, Big Island, Hawaii, as well as humpback whale swims in the Dominican Republic.
• Dolphin Expeditions - Provides rates and schedules for multi-day live aboard sailing trips in the Bahamas.
• Dolphin Journeys - Encounters and excursions with Hawaiian spinner dolphins, spiritual retreats and healing on the Kona Coast of Hawaii.
• Dolphin World - Offers a chance to swim with the dolphins in Florida, Mexico and the Caribbean Includes information about workshops, photos, and booking form.
• Dolphins Down Under - Tours to White Island, New Zealands' only active marine volcano, to swim with the dolphins. Includes description of the island and volcano, and photo galleries.
• Dolphins Plus - Dolphin research and education facility offering swims and interaction programs with Atlantic Bottlenose dolphins in Key Largo, Floria.
• Dolphins Up Close - Presents schedules, prices, and general information for tours to swim with Hector's Dolphins in Akaroa Harbour, New Zealand.
• Fun 2 Dive Manatee Tours - Orlando, Florida, operator offers all day snorkeling and educational tours. Includes schedules and prices, and video clip.
• Living From the Heart - Dolphin assisted therapy and wellness awareness trips in Mexico.
• Magical Dolphin - Guide to dolphin swimming opportunities worldwide with biology and information about dolphin therapy. [English and German]
• Marine Mammal Viewing Guidelines - Guidelines and regulations to reduce the potential for wildlife viewing to inadvertently harm whales, dolphins, porpoises, seals and sea lions.
• Sea Quest Expeditions - Biologist guides lead kayak trips to see marine orca whales in the San Juan Islands of Washington, gray whales in British Columbia, humpbacks in Alaska, and blue whales in Baja, Mexico.
• Swim with Dolphins - Swim with the rare Irrawaddy dolphin and pink indo-pacific humpback dolphin in Oasis Sea Park dolphin nursery and clinic in eastern Thailand.
• The Dream Team - Cruise aboard the research yacht for week long trips to encounter and communicate with friendly wild dolphins.
• The Human Dolphin Connection - Offers 7-12 day retreats in the Bahamas. Includes schedules and prices, program details and FAQ's.
• Ultimate Pelagics - Whale, dolphin and sea bird watching trips from the UK aboard a fully dedicated luxury cruise ship to the Bay of Biscay and Southern Ireland.
• Water Planet USA - Therapeutic programs for children with syndromes, emotional disorders or difficulties in social adaptation, and terminal illnesses.
• Whale Guide - Directory of whale and dolphin watching activities around the world with supporting information about cetaceans and other aquatic animals.
• Wild and Free - Schedules and rates for whale and dolphin watching and swimming tours worldwide.
• Wild Side Specialty Tours - How to swim respectfully with Hawaii's wild spinner dolphins, and opportunities for sail, swim, and snorkel encounters.