Your Linux Self-Help Desk. A selection of mostly Linux related tutorials, howtos, fixes, news and more.
Various Optimization Tweaks
Check the /dev/random blog for some good advice on how to optimize your linux system. More to be seen in the comments there. I've already tried them almost all before. I can recommend atime and swap adjustment. Noatime is a must, I don't know why distributions don't apply that out of the box, especially as it gives a noticeable speed gain.