• by Gavin O'Malley  @mp_gavin, June 22, 2010

Brand-focused online ad network Brand.net has raised another $14 million in Series C financing. Led by Focus Ventures, with participation by existing investors InterWest Partners and Norwest Venture Partners, the funding comes as the company reports revenue more than doubling year-over-year.

Brand.net's newest product offering, preroll video, generated over $1 million in sales in its first 90 days, according to Elizabeth Blair, co-founder and CEO of Brand.net. "The agency community has responded powerfully to our precisely managed campaigns," said Blair.

This fall, Blair said the company is planning to debut an agency-facing application with a large agency partner.

Last year, Silicon Valley-based Brand.net debuted what is called a "quality certification platform," which combines a grading system with proprietary page-level content filtering technology.

To improve the process of targeting ads on specific spots and pages, Brand.net relies on IBM Proventia Web filter technology from IBM Internet Security Systems, which blocks unwanted Web content, analyzing both text and image content.

The company's strategy follows a three-step process to ensure that ads serve up in the best spot. First, it evaluates each site on over a dozen attributes. Then, each site is assigned a control grade. Finally, during the ad-serving process, Brand.net's page-level content-filtering technology screens the content on the individual pages within each site where ads will be placed.

The privately held company had previously raised $13 million in funding. Most recently, in 2008, it completed a Series-B round of funding worth $10 million. Led by Norwest Venture Partners with reinvestment from InterWest Partners, Brand.net used that investment to fund technology improvements.

Also on Tuesday, Brand.net announced plans to open its first West Coast office, along with the addition of several online sales execs from Yahoo, Conde Nast and Time Warner.

Vivian Ritondale will open and lead Brand.net's West Coast sales office. Ritondale comes from Yahoo, where, as senior director of Northwest Sales, she led strategic accounts including Chevron, Clorox, EA and Visa.

Bernice Munk will lead the North Central (Detroit and Minneapolis) region for Brand.net. Most recently, Munk spent three years as Detroit Sales Director for Conde Nast.

Meanwhile, Ashley Atiyeh joins Brand.net's New York based team to lead CPG and Beauty accounts as well as oversee Southeast Sales. Ashley joins Brand.net after five years at Time Warner's InStyle magazine, where, as Director of Beauty and Packaged Goods, she opened and managed the Alberto Culver, Estee Lauder, L'Oreal, P&G and Unilever accounts.