Yahoo! Messenger - Instant messaging allows you to quickly exchange messages with your online friends. Unlike e-mail, instant messages appear as soon they`re sent. By downloading the Yahoo! Messenger application to your computer, you can send instant messages to other people from around the globe, send them files or have a voice conference.

Other features include voice chat, file transfer, mail and stock quote alerts, sports scores, news, and much more.

Here are some key features of "Yahoo! Messenger":
Photo Sharing:
· Drag-and-drop photos into your IM windows and talk about them like you're there.
LAUNCHcast Radio:
· Make your own radio station and listen to music you like!
Yahoo! Games:
· Challenge your friends to classic Yahoo! Games in the IM window.
IMVironments:
· Use interactive themed backgrounds in your IMs.
Find, Add, Share Friends:
· Easily get connected with the people who matter most.
Yahoo! Search:
· Search from your IM window, and get results both you and your friend can see.
File Transfer:
· Drag-and-drop files for real-time sharing and instant notification that they've been received.
Address Book:
· Synchronize all your contact information.
Stealth Settings:
· Make yourself appear online to some and offline to others.
Audibles:
· Let these animated characters say it out loud for you!
Emoticons:
· Express your feelings with these animated smiling faces.
Yahoo! Avatars:
· Represent yourself with a stylized graphical image.
Display Images:
· Select an image to represent yourself to your friends.
Skins:
· Select new visual designs or disable them altogether.
Voice:
· Make free worldwide PC-to-PC calls and enjoy great sound quality and voice mail.
Take Yahoo! with You:
· Stay connected to Yahoo! Messenger on your mobile phone.
Webcam:
· Share live video with friends and family around the world.
Conference:
· Exchange text messages with multiple people in one IM.

What's New in This Release:
Improvements in the webcam detection logic:
· If you were able to use your webcam on 9.0 or other IM programs, but not on Yahoo! Messenger 10, this fix should take care of the issue.
Explanation for grayed-out video call button:
· If your video call button is grayed-out when you're IM'ing with a friend, it's because they're on an older version of Yahoo! Messenger. In order to receive your video call, they also need to upgrade to Yahoo! Messenger 10 Beta. To help reduce confusion about this, we added an inline message explaining this.
Smoother handling of unanswered calls:
· When you make a call to a friend but they don't answer within 20 seconds, the call is automatically terminated. Previously there was no messaging about this, so we added one to let you know that your friend did not answer your call.
Better explanation for downgraded video calls:
· In the event your internet connection can no longer support the full video call (e.g. video + voice), the conversation gets downgraded to a voice-only call. When this happens, the video picture disappears. This is the correct behavior, but we added some inline messaging so you'll know when and why it's happening.

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