Real Time Matrix CEO Jeff Whitehead describes his company's product as a "do-it-yourself ad network for social media."The three-year-old startup sells a custom ad platform, called The Vortex, that Web publishers can use to put multimedia elements on their Web site, along with chat and email, and sell ads against the content.Web sites can either license the technology or share the ad revenue from any incremental traffic that the Vortex provides. Major League Soccer saw its site traffic go up 20%  after implementing the solution, according to Whitehead, which he said requires no development on the part of the Web site. "They just tell us how they want it to look, what they want on it; we can turn them ... [ Read more ]