Los Angeles-based The Rubicon Project said Tuesday morning that the firm has raised $6M in a Series A venture round. The funding came from Clearstone Ventures, which invested $4M in the firm, alongside $2M in venture debt from Square1Bank. The Rubicon Project is headed by Frank Addante, and is focused on automating the Internet advertising industry. Addante was a founder of L90/adMonitor. The firm said that it is launching a private beta of the firm's web site on the 8th of October. More information »