Is it possible to make money off of other people's opinions? If you study up on these following companies, you just might be able to!

(By Ashit Gulati) Yelp (NYSE: YELP) is one of the largest business directories and is rapidly turning into a search engine for online users that need services from local businesses.

Yelp Inc's (NYSE:YELP) most active option yesterday was the August 34 call, and it was almost entirely the product of a single trade.

Facebook Inc On Friday Facebook Inc (NASDAQ:FB) gave information of about 1.1 billion users to the authorities for national safety purposes.

Facebook Inc (NASDAQ:FB) rose about $0.07 to $22.97 U.S dollar with about exchange of 31.26 million shares on 5th June following the news that Jas Athwal chief accounting officer sold FB share for $23.35 and next day Schroepfer Michael Todd Chief ...

Facebook Inc. (NASDAQ:FB) held its first meeting with the shareholders and they seem unhappy due to low growth and losses being faced due to privacy issue since last year share price of each FB share is $38 which is lower than before.

facebook National Security Agency is busy in observing internet users through a system known as PRISM. Mark Zuckerberg, Facebook Inc (NASDAQ:FB)'s founder and chief declared that facebook is and was never a part of any agency and he is hearing ...

(Reuters) - Consumer review aggregator Yelp Inc, which analysts say could face intense competition from Facebook Inc's "graph search", is open to partnering with the social networking website's latest offering, Yelp's Chief Financial Officer Rob Krolik ...

Law360, New York (May 28, 2013, 4:02 PM ET) -- Digital marketing company Blue Calypso Inc. filed another round of infringement lawsuits in Texas federal court Monday, accusing Yelp Inc., Groupon Inc., Foursquare Labs Inc. and others of infringing its ...

Yelp Inc (NYSE:YELP) declined -5.57%, reaching at $28.15 after hovering between $26.75 and $29.76. This stock is ahead of its 52-week low with 99.65% and lagging behind from its 52-week high price with -14.39%.