Cross-platform/Alternatives to Windows

List of open source software packages - Wikipedia, the free encyclopedia
OpenSourceList.org
Find Open Source Alternatives to commercial software | Open Source Alternative - osalt.com
Open Source Windows - Free, Open-Source software for Windows XP and Vista
Open Source Freeware : 400+ free applications and utilities : eConsultant
Open Source Mac - Free Mac software, all open-source, all OS X.
OPEN SOURCE GOD: 480+ Open Source Applications
List of open source healthcare software - Wikipedia, the free encyclopedia
TTCS OSSWIN CD - open source software for Windows
Open Directory - Computers: Open Source: Software
SynergyMX.com - Freeware and Open Source Software (FOSS) List
Open Source Alternative to Commercial Software - Downloadpedia
Application Crossover Chart - Grokdoc
SOT - The Source for Open Technologies
The table of equivalents / replacements / analogs of Windows software in Linux. (Official site of the table)
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