I just can’t believe that I’ve gone so long without noticing that uPromise has a Firefox extension that will tell you that the site you’re on has a uPromise affiliation.
For the uninitiated, upromise helps save for college or pay for college by partnering with a set of sites (most of which you most likely use) and then giving a small slice of that back to the account holder. For information on how to contribute to @arijem‘s savings account (thus saving us both nice, shiny dollahbillz), contact us directly.