Price: free

If your ideal vacation combines lots of bike riding with down-to-earth cultural encounters, this basic, no-frills site could be just the ticket. Click on Responsible Travel/Cultural Programs for biking tours in more than 20 African countries—plus bike baggage rules for 40 major airlines, and useful pointers on how to select and prep a bike for travel in remote areas. Sticking closer to home? Check out IBF's Pacific Northwest cross-cultural bike tour.

BEST: Just about everything you want to know about grassroots cultural touring by bike.

WORST: Cumbersome navigation; tone can get a mite evangelical.