 Green Travel Network - http://groups.yahoo.com/group/green-travel/ Yahoo groups forum with focus on sustainable tourism. |
 Planeta.com - http://www.planeta.com/ Virtual library archiving more than 8,000 pages about ecotourism and conservation. Includes contacts and bibliographies. |
 Lindblad Expeditions - http://itins.expeditions.com/ Provider of small ship cruises presents itineraries, schedules, prices, and daily expedition reports. |
 Ecotravel.com - http://www.ecotravel.com/ On-line magazine with directory of operators, lodges, private guides, organizations, and ancillary travel services.. |
 International Wildlife Adventures - http://wildlifeadventures.com/ Offering trips around the world to observe and photograph wildlife including polar bears. Led by professional photographers and naturalists. |
 One World Journeys - http://www.oneworldjourneys.com/ Offering expeditions dedicated to connecting people with the planet. Includes schedules, past journeys, and environmental articles. |
 Dolphin Charters - http://www.dolphincharters.com/ Rates and schedules for small group wildlife and photography cruises in southeast Alaska, California, Baja, British Columbia, Mexico, the Galapagos and San Francisco. |
 Greentours Natural History Holidays - http://www.greentours.co.uk/ UK based company offers worldwide natural history tours. |
 Exotic Worldwide Adventures - http://www.exoticwadventures.com/ Ecotours in Venezuela and the Western United States. |
 Footloose Forays - http://www.footlooseforays.com/ Selection of small group educational trips into the natural world, from day trips to three week adventures. |
 Reef and Rainforest - http://www.familytours.co.uk/ Offers educational family adventure holidays worldwide. |
 Voyage of the Wanderbird - http://www.wanderbirdcruises.com/ Operates long distance sailing cruises that provide informal education and interactive wildlife research projects. |
 Naturetrek - http://www.naturetrek.co.uk/ Selection of international tours, treks and cruises guided by British naturalists. |
 DreamWeaver Travel Company - http://www.dreamweavertravel.net Presents itineraries, guidelines, and travel ethics for guided tours to West Africa and South America. |
 Earth Routes - http://www.earthroutes.net/ Provides worldwide destination and project information with links to travel advisories and home exchange opportunities. |
 Wildspace Expeditions - http://www.wildspace.biz/ Personalised Indian and African wildlife tours catering to small private groups. |
 Kalahari Management Inc. - http://www.kalahari-online.com/ Information and consultancy for the ecotourism industry. |
 EcoVentures Nature Tours and Travel - http://www.ecoventures-travel.com/ Offering guided small group tours and customized tours for individual travelers. |
 Manaca Ecotravel - http://www.manaca.com/ Offers worldwide tours. Includes destination details with ecological assessment ratings. |
 ResponsibleTravel - http://www.responsible-travel.org/ Ethical travel resource providing information about the environmental impact of tourism, respect for local cultures and laws, photography, and banned souvenirs. |
 New Jersey Audubon Society - http://www.njaudubon.org/Travel/ Information on North American and International Eco-tours focused on birds and other wildlife. |
 Ecovolunteer - http://www.ecovolunteer.de/ Information for travellers volunteering to participate in environmental projects worldwide. |
 WildWatch Tours - http://www.wildwatchtours.co.uk/ Offer escorted wildlife and photographic tours. Includes destination information, guide profile, and enquiry form. |
 World Primate Safaris - http://www.worldprimatesafaris.com/ Presents destination and accommodation options, suggested itineraries, terms and conditions, and contact details. |
 La Hesperia - http://www.volunteersecuador.com/ Volunteer working programs at La Hesperia biological station and cloudforest reserve in central Ecuador. Includes requirements and conditions, rates, FAQ, and program details. |
 Moloney Hand-Built Trips - http://www.moloneytrips.com/ Personally guided wildlife expedtions worlwide. |
 Journeys International, Inc. - http://www.journeys.travel/ With more than 300 eco-trips to 45 worldwide destinations for nature and culture explorations. |
 Environmental Adventure Company - http://www.eactours.com Itineraries and guide profiles for wildlife and cultural travel experiences in North and South America. |
 Cross Cultural Journeys - http://www.crossculturaljourneys.com/ Offers travel opportunities for individuals and groups seeking personal and global awareness. |
 Sustainable Travel International - http://www.sustainabletravelinternational.org/ Non-profit organization that supports and promotes ecotourism, through education and outreach. Includes employment opportunities and programs. |
 Ecotourism Activity Guide - http://www.ecotourism-activityguide.com/ Information on ecotourism with links to associated activities and organizations. |
 Worlds Together Travel Network - http://worldstogethertravel.com/ Immersion travel and cultural opportunities in Jamaica, Dominica Republic, Belize, and Egypt. Includes destination information and trip reports. |
 Hosking Tours - http://www.hosking-tours.co.uk/ Details and itineraries for photographic tours and safaris to a range of destinations. |
 Fischer Outdoor Discoveries - http://www.fischeroutdoor.com/ Offers wildlife tours of Yellowstone and Glacier National Parks, Alaska, and Botswana, with news and testimonials. |
 Crooked Trails - http://www.crookedtrails.com/ Non-profit, community-based travel organization promoting study tours, and village-based cultural exchanges with indigenous peoples in South America, Asia, and Kenya. |
 Basecamp Explorer - http://www.basecampexplorer.co.uk/ Showcases worldwide destinations and philosophy. Includes terms and conditions, and contact details. |
 Discovery Initiatives - http://www.discoveryinitiatives.co.uk/ London agency offers unique holidays, including walking the wilderness trail and wildlife conservation programs. |
 Tours of Exploration - http://www.toursexplore.com/ Offers soft adventure, birdwatching, wildlife viewing, natural history, culture, and ecotourism programs worldwide |
 Ecotourism at Conservation International - http://www.ecotour.org/ Presents listings of organisations and destinations worldwide. |