Their first mission was "Participate in Creating a Better World, One Couch at a Time."
I suggest to check out this page to learn a little bit more: http://www.couchsurfing.org/about.html
I've just hosted my first CouchSurfer called Jeffery Walker. We spent great time together the last Sunday, and then he stayed until Tuesday morning.
For me it's another opportunity to share with different cultures, and practice English with native speakers (if they are from US as Jeff)
