Seesmic, a much-hyped video messaging service, has raised a $6 million first round led by Atomic Ventures. The round also includes a long list of prominent individual investors, including Steve Case, Michael Arrington, Jeff Clavier, Reid Hoffman, Ron Conway, Dan Gillmor, Michael Parekh, Steve Garfield, Mark Pincus, Ariel Poler, Jeff Pulver, and Martin Varsavsky. The SF-based site has been dubbed a Twitter for video, as it allows users to exchange short video messages with each other. Founder and CEO Loic Le Meur has been a high-profile blogger and the organizer of the LeWeb conference. Release.

Le Meur offers more on his blog, including the fact that Atomic contributed $5.5 million, with the long list of “A-List” investors splitting the remaining $500k.