PNG MORE
Business & finance
Pixel
24x24 Free Pixel Icons
group, user
Black
24x24
PNG ICO ICNS MORE
Network & communications
16x16 Free Application Icons
16x16
Mixed
IconSweets 2
profiles, group, Users
40x40
group, Users, people
Mouse, Users, group
group, Users
Signs & symbols
Kiwi
group
32x32
Lingo
group, Add
group, delete
UI
Gnome icons
forum, friends, people
48x48
group, Enter
group, Exit
expand, Column, Cells