Find resources for using and tweaking the operating system which is being used even after newer versions have been released. This AboutUs list features a wide variety of online resources related to Windows XP that cover everything from comprehensive user guides to performance tweaks. You can also find security add-ons, forums and blogs, development tools, utility add-ons, free software and much more for on this list. It even includes a few websites that specialize in offering themes, wallpapers, and screen-savers for computers that use Windows XP. Feel free to add relevant sites to the Windows XP list and leave a short summary to describe each of the sites that you add.