My Free Stuff:
Freeware Files has reviews and recommendations for free software for all versions Microsoft Windows including Vista and XP. This website gets updated frequently with new freeware and open source software, usually at least twice every month. So always some fresh and new freeware there.
Freeware Games for Windows. Categorised and reviewed free games. FreewareGamer features true free and open source games for Microsoft Windows plus, where possible, the direct download URL for the game.
FreeStuffer lists internationally available free stuff. Unfortunately, the FreeStuffer has not been updated in a while so some free stuff has undoubtedly expired. Still useful to see the free stuff that is still available.
If you are looking for free graphics, then eNub, the Free Graphics hub is the way to go. From Free Clipart to Free Web Templates eNub lists enough graphical oriented freebies to keep you busy for years.... :-)