Here’s a very useful tool: http://www.iconfinder.net/ It allows you to search for icon, and it returns a lot of high quality images. Recommended!

As a developer you’re probably familiar with the FamFamFam icon collection. It has certainly served me well over the years. But even though FamFamFam is great, there’s always room for improvement. That’s why you should check out the new FatCow collection, comprised of no less than 1,000 icons in both 16×16 and 32×32 high quality [...]

Are you a programmer? Then you might to read these 7 signs your UI was created by a programmer. No more excuses next time!

Helpful link to create favicons from your favourite image online: http://tools.dynamicdrive.com/favicon/

http://www.smashingmagazine.com/2008/12/15/10-useful-techniques-to-improve-your-user-interface-designs/