undisclosed sum

Ask.com plans to buy Lexico Publishing Group, the company behind Dictionary.com, Thesaurus.com and Reference.com, for an undisclosed sum.

The fourth largest search engine briefed a few reporters on its plans such as News.com’s Stephen Shankland.

The deal is expected to be officially announced Thursday.

AT&T is adding to its stable of online advertising properties, in a move to further diversify its ad business from phone books.

The phone giant said Monday that it will acquire privately held Ingenio, a provider of pay-per-call advertising technology, for an undisclosed sum.

AT&T said that it ...