Open Source Windows has a pretty neat list of free open-source software for Windows grouped into various categories. I would say it’s a good place to start for those who are searching for an open-source/free alternative to the software they are currently using as they have handpicked the cream of the crop for each category.
While on open-source, I came across this page which has a list of open-source games for Windows. Haven’t tried any of them though. ;)
#1 by Winston on June 8th, 2006
What does “Open Source” mean? And is it alrite to use those free open source program for commercial purpose?
#2 by Sian Siew on June 8th, 2006
In simple terms, it means that the source code for a product which is being developed is freely accessible by anyone. You can get more info on it here: http://en.wikipedia.org/wiki/Open_source
It depends on the license which the open source software uses. Some licenses permit it, some might have restrictions while some totally outlaw the usage in commercial enviroments. You might have to check the terms of use for that, but personal/home usage will not be a problem at all.