Google Buys Ad Optimizer Teracent

Google’s acquisition spree continues: The company has bought Teracent, a start-up that customizes online ads on the fly. BoomTown reported in September that Google (GOOG) was interested in the San Mateo, Calif.,-based company, which is filled with veterans of…Yahoo (YHOO).

No purchase price disclosed, but I’m fairly confident this was in the sub-$50 million category. Teracent had been looking to raise something like $5 million earlier this year and had previously raised around $6 million, much of it from New Enterprise Associates.

I’m told the company was doing something under $2 million a year in revenue, and when I talked to CEO Vikas Jha in September, he told me that the three-and-a-half-year-old company is profitable.

One immediate beneficiary of the deal: Rival ad optimizer Tumri, which does very similar work.