Skype is one of the leading VoIP applications that offer free video chat services. With skype you can easily contact friends, family and even business contacts for free. Additionally, you may opt to buy credits and subscribe to plans where you can contact people from all over the world on their home and mobile phones [...]

Pidgin, formerly known as Gaim, is a great multi-protocol instant messaging program for Mac, Windows, Linux and BSD. It works with Yahoo Messenger, AIM, MSN Messenger, Gadu-Gadu, Jabber, IRC, SILC and Zephyr networks. It has been downloaded and used by many computer users because of its capabilities to support more than one instant messaging service. [...]