SF-based Buzzlogic, which helps marketers identify high-influence blogs, has added $2.5 million to its first round, reports VentureBeat. The investment was led by inside investors along with new outside investor WTI. Previously the company raised $9.6 million from Adams Capital Management, Ackerley Partners and Transcosmos Investments, for a total raise of $12.1 million. The company has developed software and a subscription service for monitoring blogs, and it recently began offering a platform to align advertising with this information. One competitor is BuzzMetrics, which was bought by Nielsen, whose focus is on monitoring and measuring user-gen media.

• BuzzLogic Raises $9.6 Million First Round
• Nielsen Buying Remainder Of BuzzMetrics; Plans To Merge Online Operations Into One Unit