Part of what annoys me about Facebook is that it assumes I mean all information I share to be shared with everyone -- either everyone on my friends list, or eve

Part of what annoys me about Facebook is that it assumes I mean all information I share to be shared with everyone -- either everyone on my friends list, or everyone on the whole Internet. There seems to be no conception of stuff I want to share only with a specific circle of friends. In this article's terminology, Facebook only understands "public public" and "friends public". What about "family public", "coworkers public", or "inner circle public"? It seems to me it would be a far more useful service if it allowed for finer granularity in those choices, rather than pushing toward a ubiquitous "public public" only.