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Social media
Smooth
Socialize 2
Blinklist
WhiteSmoke
128x128
Cartoon
Social Puzzle
blogmarks
Designbump
Dzone
propeller
Reddit
simpy
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Social and Web Icons v2
Email, envelope, mail
46x46
WPZOOM Social Networking Icon Set
Delicious
64x64
Pixel
Macchiato
Ar, flickr
20x20
Picasso Social Media Icons
flickr
512x512
twitter
32 Pixel Social Media Icons
32x32
Designmoo
Feedburner
icq
linux
Picasa
Slideshare
Threadless
Valentines Special: Social Bookmark Icon Set
mixx
Stumbleupon