120+ Free Socialize Bookmarking and Social networks Web Icon Set are available in mac(.icns), linux(.png with dimensions 16×16, 24×24, 32×32, 48×48, 64×64, 128×128) pixels and windows(.ico) format ready to be used in your blog or website.
The Drink web 2.0 from icontexto is avalaible PNG format at 32×32, 48×48, 64×64, 128×128, 256×256) pixels and drink web 2.0 wallpapers 1280×800, 1024×768 to set as desktop background.
Download: Socialize Icons Set with drink web 2.0
Download: Page Peel Social Media Iconset
This Are a Blossom Icons set from Dryicons contains 52 high quality icons at PNG format with dimensions 16×16, 24×24, 32×32, 48×48, 64×64, 128×128 pixels.
Blossom designed only two color are black and white and managed to produce one very stylish, 3D looking, modern.
Download: Blossom Icons set