Lexico, the company behind reference sites like Dictionary.com and Thesaurus.com, has been acquired by also-ran search engine Ask.com, a unit of Barry Diller's IAC, for an undisclosed sum. It will mean an 11 percent boost in traffic for Ask and more revenue for Lexico's sites, as Google had cut a special deal with IAC for a higher revenue share than it would give to the likes of Dictionary.com. Possibly tipping their hand about future moves, Ask CEO Jim Safka told the AP the site was also looking to improve results related to health and entertainment, presumably through more acquisitions. The move comes after IAC's Barry Diller settled a fight with Liberty's John Malone, a major IAC shareholder, over plans to split the company into five different parts.