One problem many people have with Facebook is separating business with pleasure. Official Facebook policy restricts each person to one user account. While many ignore this policy and create both a work persona and a personal account, doing so risks losing both and confusing those whom you are both friend and coworkers. It is possible to customize each post visibility but is not easy to find or configure.
Google is rumored to be cooking up a social dashboard to remedy the facebook fears for the cautious posters who risk offending various groups with over social awareness. Mike Elgan suggests that this new site "Social Circles" would allow you to define your social groups and allow you to post who sees what all while integrating all of the Google services you likely already use.
Will this service be as well received as facebook? Many of Googles launches have been half-baked and lacked the final polish of the many successful acquisitions Google manages. While YouTube and Picasa are amazing, Buzz and Wave have't made the same splash. Currently my Google Dashboard boasts I'm using over 30 of 42 potential Google Products, yet many overlap and often are just versions of the same basic information. How invested are you in Google's services? Would you join Google's Social Circle of Trust?