(Image Source: NBC News )  BY SCOTT MALONE ANCHOR ZACH TOOMBS Facebook pulled back the curtain on its latest creation Tuesday - don’t worry: they aren’t changing your timeline. They’re revamping their search function. It’s called Graph Search. Here’s how it works. In Tuesday’s announcement, CEO Mark Zuckerberg stressed how Graph Search is different from a web search — calling it the third pillar of Facebook, after News Feed and Timeline. Graph search is meant to answer precise queries, rather than offer links to possible answers. Like this example search for friends who like trail running. (Via Facebook ) Photos work similarly, returning answers to searches like ‘Photos of my friends before 1999.’ It’s like a Google image search, but only shows photos from your friends or photos made public by other users - and it organizes them based on how many likes and comments are present. Graph Search also lets you search other things, like what languages your friends speak, or TV shows they like, and you can filter the results even more. Facebook stresses that you can only search content that has been shared with you. A blogger for The Next Web says Facebook “holds the keys to a treasure chest of information” with its enormous user base and Graph Search. He also notes you can search the web from Facebook , and the results are pulled from Bing , though those results are sponsored. A writer for The Verge notes the partnership with Bing is “to supplement Facebook’s search results with information that it may not already have as part of its user profiles.” One expert spoke to ABC News and said Facebook “already has some of that same monetization” that Google has from its web search results. One Facebook spokesperson said there aren’t any ads in the results of Graph Search, but they “may monetize [Graph Search] further into the future.” A CNBC reporter says Graph Search is a sign Facebook could threaten several companies, including: Google, Yelp (with restaurant & doctor search), LinkedIn (with the ability to search for people’s career history or skills), Angie’s List (service search), and even Match.com . Facebook and Yelp’s stock both fell on the announcement, while Google’s stock slightly rose. Facebook says Graph Search is in beta right now, but it will expand even more in the future.