Yesterday MySpace announced that you can use your MySpace profile on other sites. Not to be outdone, today Facebook announced their version. It’s called Facebook Connect and it’s a good sign that data portability is catching on. Especially because Facebook usually doesn’t follow suit when it comes to sharing data (unless it’s for advertising).
Facebook Connect was announced on the company’s developer blog.
Privacy is a big concern as it always is with social networks. Free means you give up personal information so you can be on the site. If you change your mind, getting the information off could be tricky. Also, each site has its own privacy policies.