Arthur David Olson is the creator and editor of the time zone software used on essentially all Unix and Linux systems. He's been producing it since the 1980's. The maker of an atlas used as reference in producing the software has sued Olson, and developer Paul Eggert, for infringement.
There was supposed to be an Open Source distributed social networking system called Diaspora, which was to do a public beta today. But it didn't. I don't know if it ever will, or if it'll be any good. But someone will do a good version of Open Source social networking, sooner or later.
Anyway, I wasn't happy with the proprietary nature of social networking, and I never really got much from social networking except for finding out about the current status of folks from my old computer graphics lab and college radio station, who I'm sure can find me with Google. I come up about 13th in searches for "Bruce". Just Bruce. And my phone number's on my web site.
So, I used the "delete account" feature on Twitter, Facebook, and LinkedIn. It felt really good. I guess really was creeped out by those companies.
I kept my account on identi.ca, the open source version of Twitter. When there are Open Source solutions for the broader problem of social networking, I'll install them.