A review for Die cut stickers by Jordan Sissel.
I've used a few sticker printers before, and stickermule has a few things above those I've tried:
* great color prints
* haven't noticed any 'bad' prints (no color flaking off, etc)
* stickers seem to last a while through some abuse
* super simple site for building/placing orders
* reordering is like, two clicks. TOO EASY.