Amazon started something a few months ago that didn’t get much attention, but should: It donates 1/2 percent of what you buy to your favorite charity when you buy through http://smile.amazon.com/.
First you pick a charity – they have almost a million national and local charities to pick from. I picked Pets Lifeline. There is no step number 2 – Amazon does all the work, and it costs you zip.
There’s some limitations on what’s eligible – basically physical goods. Hopefully they will extend this program to Kindle Books and their video streaming service.