Access-Able Travel Source provides travel arrangement information and resources for the mature, or disabled or handicapped traveler.
Adioso is a travel search and booking app that provides a natural language search for the cheapest flights.
Air Asia provides a booking service for low cost air fares to countries in Asia, as well as Australia and New Zealand.
Air Serve International provides flight services, including the transport of humanitarian aid workers, supplies,and medivac patients, for hundreds of relief agencies. They work in Uganda and Juba, South Sudan and also offer general commercial air charter, aircraft maintenance, and facility services.
Airbnb helps you find a place to stay in 192 countries, from boats, to treeshouses, to apartments, they provide access to unique accommodations.
Booking.com provides lowest-cost booking services for a broad selection of accommodations around the world.
Gorp.com is a on-line resource for those looking into adventure travel. They have links and resources for outdoor gear, sports, national parks, and more.
Hipmunk offers fast, easy travel planning. The site and mobile apps compare top travel sites and allow you to find everything from commercial flights to trains to charter flights.
Hotels.com provides reservation services for hotel accommodation worldwide.
LightHawk helps bolster environmental protection efforts by making their flight services freely available to conservation groups. They also mobilize volunteer pilots, photographers, environmental experts, and storytellers to make images, collect data, inform the public and share their experiences.