PNG ICO ICNS MORE
Nuvola
writing, good, write
DarkGreen
48x48
Crystal Project
Add, writing, plus
32x32
Fugue
plus, Leaf, Add
16x16
Add, plus, bug
UI
Pixel
Fugue Icons
bug, plus
Leaf, plus
PNG MORE
Mixed
Twotiny
plus
10x10
Computer & hardware
ASP.NET icons
Add, Administrator, user
Add, plus, Finance
commerce, shopping, Cart