The tool will allow users to search for keywords in posts they are "in the audience for" on Facebook, the social network says.
Is Facebook – and to a lesser extent Foursquare – becoming more Yelp-like, and thus a threat? Some might believe the answer is an obvious yes, but it's worth looking at some of the moats Yelp has built in local search that won't make it so easy.
Google Image Search traffic is down 63 percent on average. Facebook tests Graph Search ads and debuts CPA bidding. Bing calls a search malware analysis "wrong". Here's a quick recap of search and social marketing news and tips from the past week.