From Noupe:

Icons is everywhere on the web. In most modern designs it is used to not only complete our design but also to attract the user’s eye. Designers use Icons to create breath-taking designs and decorate their desktop as well. Today we’re going to take a look at 50 most beautiful icon sets we’ve found over the year 2008.

My Take
Who doesn’t love Icons? This is easily the best list of icons I’ve seen. I especially like the hand-drawn doodles, and the social sticker icons. If you need to update the icons on your site, this is a great place to start.