This page was last updated at 08:38 on 10/21/2009  

Open source (free to use) software

ClamWin - Very good free to use and update anti-virus software

CCleaner - One of the best replacements for Disk Cleanup.

Firefox - One of the best replacements for Internet Explorer

Inkscape - Vector Graphics Editor, similar to Adobe Illustrator.

MyDefrag - MyDefrag is a disk defragmenter and optimizer for Windows 2000/2003/XP/Vista/2008/X64.

KomPozer
- Easy to use web authoring package. 

Malwarebyte - Very good malware cleanup tool.

Open Office - Very good replacement for Microsoft Office productivity suite

PDF Creator - PDFCreator is a free tool to create PDF files from nearly any Windows application.

Tux Paint - Kid (and adult) friendly paint program

Word Press - Blog tool and publishing platform

 

Links added by HECC members

http://www.onlythebestfreeware.com/
http://www.nirsoft.net/utils/index.html
http://www.techbuilder.org/recipes/59200391
http://www.software4free.org/
http://www.freewarearena.com/html/index.php
http://100-downloads.com/  
http://freetech.wikispaces.com/Resources
http://www.spywarewarrior.com/rogue_anti-spyware.htm 
http://cmap.ihmc.us/ 
http://wordweb.info/
www.lon-capa.org  \

Free, open source compilations:

http://www.winlibre.com/en/
http://www.theopencd.org/
http://osswin.sourceforge.net/
http://osscd.sunsite.dk/
http://gnuwin.epfl.ch/en/index.html

Freeware links - most of these sites test their freeware to insure no ads, spyware, or nasties, however due diligence is recommended:

http://www.techsupportalert.com/best_free_utilities.htm
http://www.cleansoftware.org/
http://www.xanga.com/home.aspx?user=clif_notes
http://www.freewaremotherload.com/
http://decentdownloads.x-istence.com/
http://www.webgrid.co.uk/index.html
http://freeware.webvena.com/
http://www.all-freeware.com/
http://www.all4you.dk/FreewareWorld/links.php
http://www.freewareoffice.com/
http://www.freewindows.dk/fw/modules/mydownloads/
http://www.users.bigpond.com/johncoom/johncoof.html
http://home.hccnet.nl/hmdejong/bestsites.html
http://www.itpeer.dyndns.org/dtae_FilesSection_notit.htm
http://freeware.intrastar.net/
http://www.onlythebestfreeware.com/
http://www.sover.net/~wysiwygx/WhutzNu.html
http://techsoup.org/products/downloads.cfm?cg=nav&sg=downloads
http://www.members.lycos.co.uk/thecavefreeware/
http://freewareoutpost1.blogspot.com/
http://support.it-mate.co.uk/?mode=Home
http://www.emm.ie/freeware/index.html
https://netfiles.uiuc.edu/ehowes/www/soft6.htm
http://aumha.org/freeware.htm
http://aumha.org/morefree.htm
http://www.pricelessware.org/2004/about2004PL.htm
http://www.tinyapps.org/

Freeware programs that either went commercial after these versions or were discontinued, or are hard to find or just plain good: http://www.woundedmoon.org/win32_freeware.html
http://www.oldversion.com

Freeware replacements for common commercial apps:
  http://www.bleepingcomputer.com/forums/index.php?s=c48be1d67cff36c38e46d3607ea20b58&showtopic=3616&st=0&#entry25169