Yahoo Messenger is a one of the leading free instant messaging application. As of posting, the latest release version is  Yahoo Messenger ver. 10.0.0.1258.

Yahoo Messenger 10 Features:

• With Yahoo Voice, Yahoo Messenger users can make PC to PC calls for free.  The new Yahoo Voice makes you feel like you’re there with high-quality, full screen video and voice calling.

• The “Updates” view lets Yahoo Messenger users track the latest Yahoo!, Flickr and Twitter updates of their friends.

• Video support enables users to paste a video link from YouTube and other video sites, and instantly show the video inside the chat window.  You can also do this on photo links.
• Yahoo Messenger can now be integrated with other instant messaging services such as: Windows Live Messenger.
• Yahoo Messenger allows its users to send SMS texts for free.  However the recipient of your SMS text can’t reply back.

To download the latest Yahoo Messenger, click here.