The new graph search can also search based on stories or photos you've Liked. One example Zuckerberg offered: the site can now display which of his friends have Liked the HBO show Game of Thrones.
Graph search starts today in beta, and will appear as a large blue search bar at the top of your Facebook page. Graph Search is a new and limited product. For now, it will focus on four areas: people, photos, places and interests.
"With Graph Search you combine phrases (for example: 'my friends in New York who like Jay-Z') to get that set of people, places, photos or other content that's been shared on Facebook," wrote product manager Stocky and engineering manager Lars Rasmussen on Facebook's official announcement blog post. The pair were also careful to assuage privacy concerns, stating "We’ve built Graph Search from the start with privacy in mind, and it respects the privacy and audience of each piece of content on Facebook. It makes finding new things much easier, but you can only see what you could already view elsewhere on Facebook."
It will be interesting to see how businesses can use Graph Search to make their Facebook pages even more valid to their current and target audience. Likely, commercial pages may start optimizing for keywords, much as they currently do for Google search-- however, given Facebook's image-heavy nature, businesses who optimize for both text and image are likely to get ahead with the new Graph Search.