Here you have three different pages, each holding links to 25+ beautiful icons sets:
- 40 Really Nice Free Icon Sets for Designers,
- 44 Excellent Free Icon Sets Everyone Must Have,
- 24 Sets Of Clean Minimalistic Icons For Perfect Minimal Web Design.
There are 109 total icons sets presented on these three webpages. Most of them are free. Some of them are devastating beautiful, some have medium quality. But, put together, makes a strong icon sets compilation, in which nearly anyone should find something interesting for his or her current project.