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Marin Software raises $11.2M for search advertising tools

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Marin Software, a company offering tools to help advertisers manage their search ad campaigns, announced that it has raised $11.2 million in a fourth round of funding.

The new round came from existing investors Amicus Capital, Benchmark Capital, DAG Ventures, and Focus Ventures, plus new backer Triangle Peak Partners. Marin has raised more than $36 million.

The San Francisco-based startup designed its tools for companies that spend at least $100,000 a month on advertising in search engines — cofounder and chief executive Chris Lien has told me that in many cases advertisers are still managing their campaigns on Excel spreadsheets. Its features include a simple interface for viewing campaigns, automatic bidding on advertising keywords, reports, and more.

The company says it now has 180 customers and manages more than $1 billion in advertising spending. It recently added support for Facebook ads. Customers include Razorfish, Neo@Ogilvy, University of Phoenix, Macy’s, and Kayak.