The good folks at SnapFiles.com have compiled a list of the coolest free programs you can use on your USB Flash Drive.   The coolest thing about these programs is that you don't have to install them on the computer you use, just click the program open it and close it.  

Free USB Flash Drive Programs

Want to upgrade your Graphics card but not sure which one to buy?  Do you have a PCI type bus?  AGP slot? PCI Express?  Should you get a Radeon? Or an Nvidia?  This site can help all the information you need to make a good decision on which type of graphics card upgrade you need.

Bustype.com

PortableApps.com

has got to be one of the most useful sites I have come across in a long while.   If you have a Flash Drive then you will want to check this site out.  Totality portable free legal programs you can take anywhere with you.  The best part about these is the fact that you don't have to install them on your computer.  They run off of your flash drive.   Just extract the files and your ready to go.  You can also have multiple instant's of the programs, in two different folders, or more.  Just copy and paste the folders to the desired drive. 

Snapfiles.com 

has so much freeware, and shareware that I literally spend hours looking for some cool downloads.   Each subject is categorized for easy navigation, and fast results.   I must see, and a must favorite.  Just click on FreeWare in the upper right of the homepage.