I was doing some keyword research & stumbled

into a great design resource!

Here are some links to some great looking free professional icons:

http://www.smashingmagazine.com/2008/05/21/40-professional-icon-sets-for-free-download/

Check out the rest of the website, there is lots of free content!

Blog & Website Help free icons, icon downloads, nofollow icons, social networking icons