Here you can find a list of programs I personally use and find useful. I do not plan to manage a list with all kind of information, but more a short info list, so that interested people can look further into it. For quite some time I've managed a list of freeware multimedia software and know that it's much work. If you're interested in the last version of this list, you can download it here (it's from 2003, so it's obsolete).
All software is free if not otherwise stated!
Anti Virus & Anti Spyware:
* AVG Anti Virus (free edition)
Fast, no resource hog and free
The best spyware solution, use Firefox to avoid most of the spyware problems
My favorite archiver. It's a shareware program.
A very good archiver, if I wouldn't have a WinRAR license I would use this program.
Audio editor and recorder.
Copies audio data from an audio CD to your format of choice.
My favorite audio player.
Must have for every MP3 listener. Adjust the MP3 files so that the have the same volume.
Song recognition software.
Free desktop sharing and remote control
The list is work in progress, but I do not want to wait until it's finished to publish it!