I'm sorry, I can't find a better place to post this topic (if you find one, please relocate it so I'll know next time ).
In the downloads tab, under "Utilites", there are a few things (in my opinion) that would be helpful to people if they were there:
Prime 95 Free Software - GIMPS for testing your CPU;
Memtest86+ Memtest86+ - Advanced Memory Diagnostic Tool for testing RAM;
GPU-Z GPU-Z Video card GPU Information Utility for looking at GPU specs and temps;
Core Temp for AMD/Intel CPU temps;
Real Temp - CPU temperature monitoring for Intel CPU temps;
Unigine Heaven Benchmark | GeForce GPU stress test ;
FurMark: VGA Stress Test, Graphics Card and GPU Stability Test, Burn-in Test, OpenGL Benchmark and GPU Temperature | oZone3D.Net Furmark for GPU stress test;
HD Tune website to test your Hard Disk;
eXtreme Power Supply Calculator to see if your current PSU is good enough (or for new-system/future-system builders).
Thanks for taking the time to read this post, and of course it's even better if you found some new sites to use!