PNG ICO ICNS MORE
Signs & symbols
3D
Free 3d Glossy Interface Icon Set
navigation, enalrge, grow
Black
64x64
refresh, update, Arrow
Mixed
Bright
Blue, Arrows
SteelBlue
512x512
green, Arrows
The Spherical icon set
Arrows, scroll, Down
MidnightBlue
128x128
PNG MORE
Desktop apps
Free Applications Icons
Arrow, renew, Reload
LimeGreen
24x24
Business & finance
Phuzion
Reload, Blue, refresh
Computer & hardware
Human o2
Arrows
Chocolate
update, sync, Arrows
256x256
SEM Labs
recycle, clockwise, double
YellowGreen
48x48