BoomTown has known about it forever and Radar Online gave the lowdown about the creation of the hip-sounding news aggregator Web site–headed by high-profile editor Tina Brown (pictured here)–by Barry Diller’s IAC (IACI) in a report in early April.

Think the Huffington Post, but more culture and less political wonkishness in a bolder and more colorful design.

While still in its planning stages, though, it just hired a new GM to run the business: Caroline Marks.

She was GM of Comcast’s Ziddio, a social video endeavor, and was also head of content development for Comcast Interactive (CMCSA). Marks has also worked in several high-profile mobile companies in the U.K.

Marks will reports to IAC’s Nick Lehman–who works for Michael Jackson, the head of programming at IAC–to get the project off the ground for IAC and Brown, the former Talk, Vanity Fair and New Yorker editor.

The project has already hired Edward Felsenthal, the former deputy managing editor of The Wall Street Journal (and BoomTown friend), to helm the edit side under Brown.

IAC has dabbled a lot in online content initiatives of late with mixed results. Still, it is moving forward with even more.

For example, the company is set to debut a personal financial site in a joint venture with News Corp.’s (NWS) Dow Jones (owner of this site), called FiLife, in June.