As many of you know, there are some crappy icon sets out there. Here are a few that I deem acceptable for general consumption. Enjoy!

Aquaticus Social icons

High Gloss Web 2.0 Icons

108 Free Matte White Square Social Networking Icons

154 Matte Black Social Media Icons

Web 2 Icons

Webtoolkit Icon Set Vol. 1

Free Vectors – 20 Free Social Bookmarking Icons

Social Media Icons Pack

34 (ou plus) boutons gratuits pour votre site

Socialize Icons

Web social icons

Social Post Stamps: Free icon set

Polaroid icon set

Set of social icons no.3

Bonus: Twitm Icon (very slick app-icon)