support for additional message sources, e.g. Facebook, AIM, Google Talk, etc.;

支持额外的信息源，比如Facebook，AIM，Google Talk等等。

youdao

So it's quite likely that your Gmail contact list and Google Talk friends list include people you don't know.

这样一来你的Gmail通讯录和Gtalk好友里面会出现不少你根本就不认识的人。

youdao

Google Talk was originally launched as a desktop client, but it can now be integrated into your browser sidebar.

Google Talk最早是作为一个桌面工具发布的，但现在它可以被集成到浏览器边栏中。

youdao

For instance, you can't directly send an instant message to BlackBerry Messenger from Google Talk.

CNN: One-third of Americans prefer texts to voice calls

Google Talk is a downloadable Windows application that lets customers send instant messages or have voice chats with friends.

FORBES

The move may help Skype compete against Oovoo, Google Talk and other rivals.

BBC: Skype slashes battery use for Windows 8 system launch