Like all online freebies, this site does have it's online detractors so buyer beware.
I found one interesting review: "My purchases rarely show up in my cash back even though I click through properly. When I inquire about it, I’m routed to an offshore “customer service center” that asks me to send in documentation, even when it has been logged on their site. Why should the customer be the one to manage missing cash back? What a rip off."
I realize this is just one person's experience but there were a lot more with similar issues. I read their fine print and they stress a bunch of conditions that you must meet each time you shop like ONLY linking thru ebates and if you leave the page for any reason before you purchase your items then you "might" not get your ebate.
Sounds like an easy out for them.
Thanks for the tip but remember.......nothing is ever FREE!

Caveat Emptor
peace, mike