SpaceShare Green Travel builds ride- and room-share tools for festivals and conferences. Their team developed the early draft of this site.
If your organization contributes to spreading this green events guide, your logo can be here too.
Search Environmentally Friendly Hotels to find hotels where you are going.
Ceres' Green Hotel Initiative offers two printable green guides to give to hotels during your visit: simple or more detailed. See many more ideas at our campaign to green hotels and the hotel star system. Ask for the green world you'd like to see!
Instead, bring your own or buy in bulk to cut down on wasteful packaging. PS -- if the hotel hasn't already jointed, tell them about soap recycling at Clean the World.
Airbed and Breakfast is an online marketplace for booking rooms (or mere couches and airbeds) with locals as an alternative to hotels, or look for a hostel.
Many communities provide non-commercial lodging. These are not merely cheap alternatives to hotels and shouldn't be treated as such: often they are real communities, asking less of your money and more of you -- hopefully including your reciprocation -- and providing more than a room. Often they are focused on cultural exchanges and friendships. Explore:
couchsurfing.org -- the most famous of the web 2.0 couch surfing sites, bewelcome.org, belodged.com, hospitalityclub.org, globalfreeloaders.com, place2stay.net, or Servas international cultural exchange.