Rubicon Releases Ad Numbers For News Publishers

Los Angeles-based Rubicon Project, the online advertising optimization software firm headed by Frank Addante, released new traffic and customer numbers Monday, saying that the company is now serving up ads for 8 of the top 15 newspaper publishers in the U.S. The company's publishing customers include MediaNews, Gannett, and Freedom Interactive, among others. The firm said it has optimized more than 18 billion impressions for 150 "Premium News" category publishers using its products. Rubicon said that the Premium News category is one of the firm's largest growing areas. Rubicon's products are used to optimize the mix of online advertising networks for publishers, by selecting which ad networks will provide the most revenue for online publishers. The company is backed by funding from Clearstone Venture Partners, Mayfield Fund, and IDG Ventures.