ubuntu-unleashed
Follow @ggarronWhile being at digg.com I found this site, Ubuntu Unleashed that comes with lots of How-To for Ubuntu, good Desktop and Compiz-Fusion advises to make your Ubuntu look better.
Most of his article also apply for other Linux Distributions.
Kyle who is his author is doing really a good job, I like also the clean theme he has chosen for his blog is really easy to read, and nice to the eyes.
Hope you enjoy this site.