The Google Talk downloadable application for Windows offers many features for communicating with friends and family.
Instant messaging - Chat with all your Google Talk and Gmail contacts in real time.
Free PC to PC voice chat - You can talk to someone else for free who is online and has the Google Talk client.
Send and receive voicemails - If the person you are calling is not available, you can leave a voice message.
Unlimited file transfers - Send files to your contacts. There is no file size or bandwidth restrictions.
Gmail notifications on your desktop - When you are connected to Google Talk, you will be notified of new messages in your Gmail inbox.
Homepage: www.google.com/talk
