Facebook is fun to use. But it's not a fun place to work — as confirmed by the defection of Net Jacobsson, a key executive in Facebook's effort to cash in on your life online.

Facebook has shut off access to Google's new Friend Connect, citing privacy issues, saying that the service "redistributes data" in ways that users don't "expect or understand," according to a blog post by Facebook developer Charlie Cheever. Google Friend Connect collected and displayed information available through…