
The "Consider the Environment" meme spread across email signatures like wildfire, and now Reply for All is hoping they can accomplish the same thing.
Their service inserts an advertising-supported signature into your GMail or Yahoo Mail messages that supports a charitable cause of your choosing. Currently, there are eight choices: AIDS prevention, cancer research, children's rights, animal rights, climate change, fighting poverty, clean water initiatives, and supporting education. The insert can be customized three ways: display your cause only, or add rotating relevant facts and your contact information.
Once you begin using your new signature, you can check on the impact you've made on the Reply for All web site. They also provide global statistics, and it's nice to see that they've been able to make some fairly significant contributions since launching their service.
You won't be spamming your mail recipients with ads, either. It's only added once every four hours, and you can always click the brightly-colored no signature button to remove it from a message.
To use Reply for All, you'll need either a Gmail or Yahoo Mail address, Firefox, and the Reply for All addon - which you can install after signing up. There is a privacy policy and a TOS that you may want to read, just so you know what you're agreeing to by signing up.
[ via Digital Inspiration ]