This is for those of you who use Chrome. If you don't, check it out anyway, it's great.
"Chrome for a Cause" is an extension that donates a little bit of money to various charities each time you open a new tab. Install it and a little counter will appear next to the address bar, that's it.
It couldn't get any easier, so click the link below and do some good, damnit.
http://goo.gl/Dy35B