Efficient Frontier, a Mountain View, Calif.-based provider of paid search engine marketing solutions, has raised $6 million in Series C funding, according to a regulatory filing. Mitsui & Co. was joined by return backers Redpoint Ventures and Cambrian Ventures. (Source: PE Wire)

This is relevant because Efficient Frontier is one of the numerous venture-backed companies saying it has unique technology help you do better advertising campaigns on search engines. It is run by the Ellen Siminoff, the former lead dealmaker at Yahoo during the Internet go-go years.

VentureBeat's mission is to be a digital town square for technical decision-makers to gain knowledge about transformative enterprise technology and transact. Discover our Briefings.