Michael Copeland gives away what could possibly be the biggest Web 2.0 resource out there: over 3,000 sites contained in the Social Networking Directory. Best of all, it’s FREE! The Social Networking Directory not only gives you the description of each site, it has the graphic, tags, and the link!
I’m sitting here going through it and can’t believe how many social sites there are, especially those that I don’t know! I recommend that you go and get it right now for no penny out of your pocket!