Pidgin (previously called Gaim) is a multi-protocol instant messaging (IM) client for Linux, BSD, MacOS X, and Windows. It is compatible with AIM and ICQ (Oscar protocol), MSN Messenger, Yahoo!, IRC, Jabber, Gadu-Gadu, SILC, GroupWise Messenger, and Zephyr networks. Pidgin users can log in to multiple accounts on multiple IM networks simultaneously. This means that you can be chatting with friends on AOL Instant Messenger, talking to a friend on Yahoo Messenger,... 

Thunderbird is a great email client from the same people who brought you the Firefox browser. Thunderbird gives you IMAP/POP support, a built-in RSS reader, support for HTML mail, powerful quick search, saved search folders, advanced message filtering, message grouping, labels, return receipts, smart address book LDAP address completion, import tools, and the ability to manage multiple e-mail and newsgroup accounts. Full-Featured Email Junk Mail Filters Anti-Phishing... 

Miranda IM is a multi protocol instant messenger client for Windows. Miranda IM uses very little memory and is extremely fast. It requires no installation and can be fitted on a single floppy disc. Its powerful plugin system makes Miranda IM very flexible. Only the most basic features are built in, but there are currently more than 350 free plugins available for download that allows users to extend the functionality of Miranda IM. Available Protocols ICQ AIM MSN Jabber Yahoo IRC Gadu-Gadu Tlen Netsend Changes: Enhancements: -... 

Pidgin is an instant messaging program for Windows, Linux, BSD, and other Unixes. You can talk to your friends using AIM, ICQ, Jabber/XMPP, MSN Messenger, Yahoo!, Bonjour, Gadu-Gadu, IRC, Novell GroupWise Messenger, QQ, Lotus Sametime, SILC, SIMPLE, MySpaceIM, and Zephyr. Pidgin can log in to multiple accounts on multiple IM networks simultaneously. This means that you can be chatting with friends on AIM, talking to a friend on Yahoo Messenger, and sitting... 

AOL AIM Triton is the next generation release of AOL Instant Messenger. It is an all new user experience with an elegant, tabbed look and feel. New ‘Quicknote’ feature replaces the initial IM window to provide a snapshot of known contact information about that buddy and give users three choices: launching an IM session, launching an AOL Talk session or sending a mobile text message to a cellular user. The tabbed messaging interface helps users easily...