Recently I have been member of this wonderful group called Couch Surfing. The idea is simple, facilitate the hitch-hikers and low cost travelers in finding friendly locals who would be more than giving to spare a small corner for them.
You can also use it for meeting interesting people from around the world and since the group largely consists of people who love to socialize, its fund attending its meetings and outings. Just surf around, maybe you also like it.
on the lighter side, here is how one should never hitchhike.