The set contains 16 social icons in (transparent)PNG format.

Download: Page Peel Free Social Iconset

Web Injection is an Icon Pack for webmasters and web developers created exclusively for the viewers of Tutorial9. The set includes 26 stylish icons designed by Midtone Design Studio.

Each icon is a .png at 48×48px. The Icons were tediously hand crafted by designer Jonatan Castro Fernández.

Download: Web Injection Iconset

This iconset contains three variations of twitter icons.  Author provides 5 different resolution flattened PNG Files and their vector source files.

Download: Twitter Vector Icon Set

Weby Icon Set brings to you 100 icons at 64×64 pixels ready to be used in your application or website.  The icons are available in PNG, ICO and ICNS format. They are free to use for both personal and commercial projects, including websites, templates & software. You are not allowed to sell or redistribute the icons anywhere else.

Download: Weby Icon Set

This Russian Iconset Contains the icons in all sizes, both ico and png formats. Its free for personal use and also free for commercial use, but require linking to author’s web site.

Download: From Russia with Love Icon Set