Google Inc. plans to launch a long-rumored program Wednesday that provides both text instant messaging and computer-to-computer voice chat.
The new program, Google Talk, will compete against similar free services offered for several years by America Online Inc., Microsoft Corp. and Yahoo Inc. All are vying to increase their presence on PCs to boost online ad revenue and name recognition. The launch was due to come two days after Google unveiled another free program that aggregates information on a computer desktop.
