Extrabux

This is a great one the Mrs. just sent me. You get paid to shop, as well as by referring others.
From my wife:

"I would like to add a site that I simply love! It's called Extrabux and it pays you a kickback for shopping on your favorite websites. It really works...I just ordered 2 pr of shoes (one for my daughter and one for me) to go to a wedding, here is my actual transaction:

On 05/20/2008 I placed an order w/Old Pueblo Traders for $64.99, got a cash kickback of 7.0% or $4.55

And also on 05/20/2008 I placed an order w/ Shoes.com for $31.99, and got a cash kickback of 15.0% $4.80"