It is very unlikely that I have more information, and such requests unfortunately are a low priority in my mailbox. I hope for understanding. In January of 1998 I wrote an article suggesting a hospitality club for and by hitch-hikers would be a good idea , as they have special needs and characters and tend to understand each other well. In 2000 it went onto the web, and is easily the best of its class. Mostly American then European members, with a fairly thin spread of members elsewhere.
Membership is free, though registration as a host is required to access the database as a guest.
Trying to get a response out of anyone involved is not easy. I don't hold much respect for commerical liers, nor unfilled promises, so I have to open with big thumbs down. Still, they have a very professional site as far as graphics and presentation go, and it looks good to be frank and they offer four catgories of hosting Business, Home Exchange, Gay and Backpackers. I wish I could say more. Read the notes under Servas below.