Instant messaging and VoIP app provided by Google that can be accessed through Gmail, iGoogle and orkut as well as the Windows desktop program. Also known as Google Chat.
Using the Extensible Messaging and Presence Protocol (XMPP), Google Talk is an instant messaging and voice over IP application that allows users with a Google account to text and video chat from within their browser.
The Google Talk app for Windows was shut down on February 23, 2015. If you try to use the Google Talk app, you'll see a sign-in error, and we'll send you an email explaining what's happened.