Also, EFF is on option for smile.amazon.com. I've generated $9 for them so far, would have been more if I had remembered to use smile more often. Amazon is nice enough to remind me once in a while to use it, I wish it would just be automatic when I'm logged in, I refuse to install a plug in for that feature.
I had the same issue until I discovered there were plugins for Chrome[1] and Firefox[2] that will automatically redirect you to smile.amazon.com anytime you are on amazon.com. I have seen issues with the Firefox one when you aren't actually logged in to Amazon at the time, but the Chrome one works great.
Thank you for pointing this out. I wasn't aware of that extension. I've only generated $14.12 in the multiple years I've used smile (inconsistently). It'll be interesting to see how much that changes in the next year.
Make sure you search for "Electronic Frontier Foundation". The results for "EFF" are not helpful and the first result "Eff" appears completely unrelated.