This free set includes 50 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: 32px and 16px in three different file formats: vector EPS, PNG, and GIF.
Designed By: IconDock.com
File Type: vector .eps files, png and gif
License: You may use or modify the icons for any purposes. However, you may NOT resell or distribute the icons
Sizes: As you need
Description: Free Vector Icons
Download: Get the .zip file here: Vector social media icons | Visit IconDock
Brightmix iconset has been updated with more icons that are useful for any kind of projects.
Designed By: Brightmix.com
File Type: vector .eps files
License: WTFPL, Do What The Fuck You Want To Public License 
Sizes: As you need
Description: Free Vector Icons
Download: Get the .eps file here: brightmixIconset_v02.eps | Visit Brightmix
Designed By: Designed by Iconeden and released for Smashing Magazine
File Type: .png, .ico, .incs and .tif. Also, the vector source (.eps) is available for free download as well
License: Use the set for all kind of projects for free and without any restrictions
Sizes: 48×48px and 128×128px
Description: 20 beautiful, original and sweet icons. Slurp!
Download: download the set (incl. vector source) (.zip, 3.5 Mb) | Smashing Magazine
Iconeden delivers this cute little iconset for Twitterer community. Birdies is the set of 12 pixel and scalable vector icons. We love Twitter too!
Designed By: Iconeden
File Type: PNG and Vector
Sizes: 64×64 px and 128×128 px
License: The icons can be used royalty-free by the license for any personal or commercial project
Description: 12 icon set
Download: Iconeden freebies
