There are more social networks than one can shake a stick at. That’s not a bad thing, since it means that at some point the memberships will approach zero-sum (though will never get there) and people will naturally gravitate toward the networks that make the most sense for them. Small, beautiful and relevant are the things that help social networks become sustainable and effective. A few of the possibly new or overlooked nets available include MyColts.net, Change.com, Couchsurfing, Dodgeball.com, GoPets, Threadless and Joost.