All in One Messenger

Yoono - All In One Portable Messenger

Yoono All In One MessengerYoono is a Portable Messenger founded by Pascal Josselin. This All in One Chat Client can be used to instant message via multiple IM services including Facebook, Myspace, Twitter, YouTube, FriendFeed, Flickr, Linkdin, Yammer, AIM, GTalk, Yahoo Messenger, and Foursquare using one single messenger.

Miranda - Portable Instant Messenger

miranda-portable-instant-messaging-screenshotMiranda is another great Portable Instant Messenger application. Like Pidgin, it supports AIM, ICQ, IRC, MSN and Jabber, however, Miranda also sports a plugin system that allows you to include other popular instant messaging protocols like Gadu-Gadu, Netsend, Skype, Yahoo and more.

Pidgin Portable - Instant Messaging

pidgin-portable-instant-messaging-softwarePidgin Portable is Portable Instant Messaging software that allows users to have access to all of his or her Instant Messaging accounts from one simple to use application. This portable instant messaging application is based on the popular Open Source Pidgin IM software.