Yahoo! ( YHOO) is another popular search. The Internet company has announced the acquisition of video communication software firm OnTheAir. OnTheAir allows users to have video conversations in a "television talk show" style format, where members of a chat group are called "on stage" by a host. It is a five-person start-up which just launched this past March. Its staff will join Yahoo!'s mobile team. 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.