Seattle—Search engine marketing and social optimization company SEOMoz Inc. has acquired audience-development company AudienceWise Inc. In a statement, SEOMoz said the price, in cash and stock, was “in the low seven figures.” AudienceWise specializes in boosting audiences for news publishers and e-commerce sites using search engine and conversion optimization as well as social media. It is the latest in a series of acquisitions by SEOMoz, fueled by a venture capital infusion last May of $18 million.