Facebook's big press event came and went, and Mark Zuckerberg used it launch Graph Search, a personalized social search engine.
Mark Zuckerber explained that Graph Search is meant to answer specific questions like "Who are my friends in San Francisco?" or even, as explained by project lead Lars Rasmussen (ex. Google Maps chap) find a dentist in a town that you just moved in. It appears that it will do exactly what it is, search social things. It is also noted that due to recent privacy aware trend, Graph Search is all about privacy as 10 percent of Facebook's computing power is aimed exactly at that, and using Graph Search will not automatically change your privacy settings.
The Graph Search is painted as a return to Facebook's roots, as it is meant to forge connections and relationships between people that they would not otherwise meet and find "hyper-specific" content, all with an internal search engine.
The beta, only in English language, already launched and will offer people, photos, places and interest as its focus, but it was noted that you can expect it to expand in the upcoming months.
You can follow this link to apply for beta Graph Search where you can check out Mark's introduction video as well.