When Facebook launched its Open Graph protocol in April , blanketing the web with “like” and “recommend” buttons, it seemed obvious that one of the company’s goals was to use the resulting behavioral data to power a social search engine — one based on likes instead of links. Is Facebook's Social Search Engine a Google Killer?: Tech News and Analysis «
The Race to Build the “Daily Me” Continues: Tech News and Analysis « Ever since the web first started to become mainstream, there have been attempts to build the “Daily Me,” a personalized newspaper that learns what you like or are interested in (does anyone remember PointCast?).