These are pretty cool, and the best thing about them is that it's all free. So hurry up and go catch these great sets of icons... So, I hope you all enjoy my selection! Cheers. ;)

Vector Social Media Icons

This free set includes 80 icons of the most popular social media networks on the internet. The icons are designed in 32px and 16px vector format. With the vector format, you can scale the icon to any size to fit with your design or use it in high quality print materials. What you will get from the zip package: 16px, 24px, 32px in PNG format and a vector EPS file. Don’t forget to get our Moi icon set to match with this style.

Free Icon Pack: Vector 3D Social Icons

Vector 3D Social Icons is an original and fully editable set of social media icons exclusively for Six Revisions readers.

The icons we created for you are clean and simple, ready to be used in websites, blogs, web applications, and everything else that you can imagine. There are 10 icons in the set for popular web services like Twitter and Facebook.

This icon pack includes the vector source files (AI) of each icon so that you can easily edit and scale the icons with no loss in quality. It also comes with PNG files with sizes at 256x256px.

Plastique Icons: Over 100 Web Icons

Plastique Icons is a set of 108 (and growing) web and application icons inspired by advertising clip art of the 1920′s and 1930′s. The set is available in vector format and also includes a CSS/PNG sprite version.