NEW YORK ( TheStreet) -- Popular searches on the Internet include Facebook ( FB) as the social media company is working on a free calling feature for its Messenger app. Facebook is testing a feature that lets users call each other over WiFi or the user's cell phone's data plan. There is no video aspect to the service. Testing is currently being done on users in Canada who have the most recent version of the Messenger app on an iPhone. Facebook has also added a "push to talk" feature to its Messenger app that is available on Android and iOS phones through a global update. With the "push to talk" feature, users can record short audio messages and send them to their friends. Facebook recently opened up its Messenger app to people who don't even have a Facebook account. Research In Motion ( RIMM) is trending as the company has unveiled a new smartphone.But these phones don't run on the highly anticipated BlackBerry 10. Instead, RIM revealed the BlackBerry Curve 9315 that will launch later this month on T-Mobile. The phone features a 3.2-megapixel camera, full QWERTY keyboard, microSD memory expansion and will run on the BlackBerry 7.1 operating system. The phone will launch on Jan. 23. RIM's BlackBerry 10 phones are set to be revealed just one week later. The Curve 9315 is available for pre-sale on Jan. 16. It will cost $49.99 plus $10 per month under the Equipment Installment Plan. Meanwhile, a couple of handsets running the BlackBerry 10 operating system have appeared in the Federal Communications Commission's database of devices that have passed regulatory testing. Google ( GOOG) is another popular search. Federal regulators have dropped their antitrust probe of the Internet company. After a 19-month investigation, regulators ended the investigation without imposing any major sanctions on Google. Regulators had been investigating complaints that Google manipulates its search results to highlight its own products and services, which investigators found that sometimes Google actually does. They did not find, however, that the company violated U.S. antitrust laws or hurt consumers. The chatter on Main Street (a.k.a. Google, Yahoo! and other search sites) is always of interest to investors on Wall Street. Thus, each day, TheStreet compiles the stories that are trending on the Web, and highlights the news that could make stocks move.-- Written by Brittany Umar.