Which brings up a thought that I'm not that different from a lot of Facebook users. If the surveys that have been reported recently are correct, many Facebook users keep the service for social communication only (or have two accounts). Basically, they don't want their boss hanging out with their friends. Yes, I know it's possible to set up different groups and the like, but I wouldn't want them being accidentally mixed up either.
All that said, I'm a believer in Facebook for being able to keep up with my friends.