Windows

HTML Editor that evolved from NVU. Can be used for WYSIWYG editing of web pages and web file management.

A telephony program that supports free multi-user computer calls and charges VOIP rates for making phone calls. Also supports text messaging, video calls,and file transfer.

Anti-virus and security suite that offers a free version (AVG Free) and full versions from $35-$55

open source browser developed by the Mozilla team - many addons available. Market share estimated at 15-20% (2008).

A cross-platform, open source program for recording and editing audio.