Graph Search is in a limited preview, or beta.

ENGADGET: Facebook launching 'Graph Search' personalized social search engine, beta starts today (video)

Google gave web site owners some tips for optimizing their sites, which were part common sense and part its observations of how Instant Previews preformed during testing (short answer: users are 5% more likely to be satisfied with their search results if they get to preview the sites).

FORBES: Instant Previews Can Mean Instant Rejection

Boycotts against VH1, "The Search for a Black Model, " and preview of Jill Scott's new album - here with the freshest in entertainment, we've got Allison Samuels, a correspondent for Newsweek.

NPR: Will 50 Cent Retire?