Trillian 5.0

Trillian would help you to stay online on multiple accounts with one client.

Trillian 5.0 is designed for multiple instant messaging services where the contacts are not bound to their own IM service groups, and can be dragged and dropped freely, Trillian application client is providing access to multiple instant messaging that supports networks like AIM, ICQ, Windows Live Messenger, Yahoo! Messenger, IRC, Novell GroupWise Messenger, Bonjour, XMPP, and Skype networks; as well as social networking sites, such as Facebook, Twitter and MySpace; and email services, such as POP3, IMAP, Gmail, Hotmail and Yahoo! Mail.

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