The bookmark management site I discovered a few days ago — bluedot.us — has already been hit with spam. Ughhh… someone set up an account and “dotted” links to items from their adult toy shop. This is probably the biggest problem I see with social networking sites. If very strict control isn’t maintained over membership, the spammers will take over and quality will suffer. But of course, strict control over membership slows down the development of the social network, so what’s the answer?