Pidgin - мультипротокольный клиент для Linux, BSD и Windows. Поддерживаются среди таких известных протоколов как AIM, ICQ (Oscar protocol), MSN Messenger, Yahoo!, IRC, Jabber также менее или почти неизвестные сети Gadu-Gadu, SILC, GroupWise Messenger, and Zephyr networks. По своим функциям данный мессенджер не уступает коммерческому аналогу Trillian. Большинству пользователей известны проблемы с кодировками если контакты используют различные версии клиентов.С GAIM вы можете забыть об этом. Для каждого протокола имеется собственная кодировка решающая проблему раз и навсегда.
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, 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 in an IRC channel all at the same time. Pidgin supports many features of the various networks, such as file transfer, away messages, and typing notification. It also goes beyond that and provides many unique features. A few popular features are Buddy Pounces, which give the ability to notify you, send a message, play a sound, or run a program when a specific buddy goes away, signs online, or returns from idle; and plugins, consisting of text replacement, a buddy ticker, extended message notification, iconify on away, spell checking, tabbed conversations, and more. Pidgin runs on a number of platforms, including Windows Linux, and other UNIX operating systems.
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Tiny program will save up to 70% of your battery by disabling those nice, but greedy Vista features. Running in task bar with private workset of 5.5M and 0% CPU it will do all work for you, by enabling and disabling customizable features when power source changed or battery power fall under certain percent. 
