Yahoo! Messenger - интернет-пейджер, разработки компании Yahoo!. Если посмотреть статистику популярности программ подобного плана, то можно увидеть, что Yahoo! Messenger занимает почётное третье место в мире, после таких программ, как: AIM и ICQ. Это и не удивительно, ведь с помощью этой программы можно комфортно общаться через интернет, находить новых друзей, обмениваться файлами, отправлять и получать электронную почту, вести голосовую беседу, общаться посредством веб-камеры и т.д. Выход этой версии связан с добавлением новых возможностей, а также с оптимизацией пользовательского интерфейса.

Yahoo! Messenger is a popular advertisement-supported instant messaging client and associated protocol provided by Yahoo!, that allows you to see when friends come online and to send them instant messages. It also can alert you to new e-mail in your Yahoo Mail or Yahoo Personals accounts, or when you have upcoming events recorded in your Yahoo Calendar. Yahoo Messenger offers firewall support, a standby mode that minimizes the program until an Internet connection is made, the ability to save and print your conversations, and a tabbed interface that provides quick access to your favorite stocks, news, and sports scores. Yahoo! also offers PC-PC, PC-Phone and Phone-to-PC service, file transfers, webcam hosting, text messaging service, and chat rooms in various categories.
Yahoo! Messenger is provided free of charge and can be downloaded and used with a generic "Yahoo! ID" which also allows access to other Yahoo! services, such as Yahoo! Mail, where users can be automatically notified when they receive new email.

Entertainment
- 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. Right in your IM window, challenge friends to a game of backgammon or pool while you catch up.
- IMVironments. Use interactive themed backgrounds in your IMs.

Productivity
- IM Windows Live™ Messenger friends - New! Share IMs (and more), plus see them on your Messenger List.
- Yahoo! Calendar. Stay organized and get calendar alerts.
- Contact Search Bar. Quickly find a contact to IM, call, SMS and more.
- Find, Add, Share Friends. Easily get connected with the people who matter most.
- Yahoo! Search. Find what you need right from your IM window.
- File Transfer. Share files with friends instantly.
- Address Book. Synchronize all your contact information.
- Stealth Settings. Make yourself appear online to some and offline to others.

Personalization
- Plug-ins - New! Add content, services and games to Messenger.
- Sound effects - New! Play fun sounds or a song during PC calls.
- 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.

Communication
- Chat Rooms. Join a live, group chat room to discuss a variety of topics.
- Make Calls From Your PC. Make free worldwide PC-to-PC calls, plus free voice mail.
- PC-to-Phone Calls* - New! Call regular and mobile phones for as low as 1¢/min.
- Phone-to-PC Calls* - New! Get a phone number for your PC so friends can call you.
- Connect on Yahoo! 360° - New! Stay up to date with friends' blogs, photos, and more.
- Take Yahoo! with You. Send and receive IMs 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.

NEW in Yahoo! Messenger 10.0.0.1102 Final: