Social Networking: When It All Goes Horribly Wrong

One of the first social networking upstarts, MySpace, is facing continuing security problems that threaten to spoil many of the innovative features that make the site useful.

Hackers, spammers and Internet malcontents have turned many of the "group" sites, which are dedicated to interests such as home beer brewing, animal welfare and gay rights issues, into cyber-graffiti walls, filled with offensive comments and photographs.