AT&T working with ExtendMedia of Newton

AT&T Inc. has formed an alliance with privately-held ExtendMedia Corp. of Newton to expand AT&T's presence in the Internet content delivery market now dominated by Akamai Technologies Inc. of Cambridge. Financial details of the deal were not released.

Companies like Akamai use their own global networks of server computers to speed up delivery of data from major Internet sites.

Akamai is the market leader, but AT&T said it will spend $70 million this year to enhance its ability to distribute digital media in the United States, Europe and Asia.
(By Hiawatha Bray, Globe staff)