Remotix - Remotix is a fast and powerful application to easily access multiple Macs (and PCs).

Pidgin - Pidgin is an easy to use and free chat client used by millions. Connect to AIM, MSN, Yahoo, and more chat networks all at once.

Distant Desktop - Distant Desktop free download. Get the latest version now. Access and manage remote computers from anywhere in the world.

Adium - Adium is a free instant messaging application for Mac OS X that can connect to AIM, MSN, Jabber, Yahoo, and more.

ISL Light - ISL Online allows fast support to unattended computers and on-demand remote support for your clients. Set up permanent access by installing a remote access agent on any Windows or Mac computer. See all the features.

Gajim - Full featured and easy to use Jabber client