Boostware
Here you will find free tools to boost up the performance of your pc system
http://www.boostware.com/tools.html
CleanSoftware
CleanSoftware
http://www.cleansoftware.org/
Completefree
Freeware heaven! a fabulous selection of completely free windows & dos software - tested, reviewed and rated. free weekly email newsletter.
http://www.completelyfreesoftware.com/index_all.html
FreewareFiles
Free downloads of thousands of software programs. all freeware downloads are rated, reviewed and include screen shots.
http://www.freewarefiles.com/
FreewareHome
Freeware downloads. free downloads of 4500+ freeware programs. business and productivity, desktop, education, games, graphics, home and hobby, internet, programmins, system utilities
http://www.freewarehome.com/