Trillian Astra 4.0.0.117

Trillian is a fully featured, stand-alone, skinnable chat client that supports AIM, ICQ, MSN, Yahoo Messenger, IRC, Google, Facebook, and others. It provides capabilities not possible with most original network clients, while supporting standard features such as audio chat, file transfers, group chats, chat rooms, buddy icons, multiple simultaneous connections to the same network, server-side contact importing, typing notification, direct connection, proxy support, encrypted messaging, SMS support, tabbed chatting, system-tray notifications and alerts, and privacy settings.

What's new in this version:

Version 4.0.0.117 features a revamped interface, compatibility with major social networking sites, a global login, multiple location sign-on, video and voice calls, support for a wider range of IM networks, and performance enhancements.
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Digsby Build 67 (beta)

From dotSyntax :

Digsby helps you manage all your IM, e-mail, and social network accounts from one easy-to-use application। Digsby lets you chat with all your friends on AIM, MSN, Yahoo, ICQ, Google Talk, Facebook Chat, and Jabber with one simple to manage buddy list. It provides notifications when new e-mails arrive and lets you perform actions such as "Mark as Read" or "Report Spam" without having to go to your inbox while also keeping you up-to-date on what's happening on your social networks with pop-up notifications and a news feed of recent events for Facebook, Twitter, LinkedIn, and MySpace.

What's new in this version:

Build 67 introduces a brand new Twitter implementation in Digsby that makes it unlike any other Twitter client on the market. Tweets are shown in chronological order so you read the conversation as it happens instead of seeing the tail end first and then reading it backwards. Digsby keeps track of unread counts but you never have to mark things as read--Digsby does it for you so you never miss a tweet.
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Yahoo Messenger 9.0.0.2162

From Yahoo :

Yahoo Messenger is a free service 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.

Watch the video review of Yahoo Messenger:

Other features include the ability to create a chat room automatically, stock price alerts, the ability to send messages to friends (even if they're not online when you are), a Quick Compact mode that hides the Messenger tools to maximize your viewing area, Messenger Themes, and voice chat, which allows you to talk for free to anybody else on the Internet। It also includes Launchcast Radio, Yahoo Games, and Yahoo Audibles. Using a Webcam, you can see who you're chatting with or view the Webcam of any Yahoo member who has granted you access.

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