http://www.routard.com/
A very "hippie," disorganized web site that offers help to people traveling all over the world who have specific needs, budgets, and life styles. It offers guide books, leaders, charter travel, and a forum for discussing trips.

http://www.lonelyplanet.com
Tied to the Lonely Planet guidebook(which it offers for sale), this site provides information about places to visit, opportunities to communicate with other travelers, and offers a communication kit that uses voice, e-mail, and fax.