Here are two easy ways to make a difference, using the internet.
1. Click on the donate food button at http://www.thehungersite.com/ every day. While you're there, go to to the breast cancer, literacy, rainforest and other sites and click on their donate buttons, too. It costs you nothing, but sponsors donate for each click realized. Of course, if you want to click on the sponsors and visit their sites, or purchase through them, all the better.
2. Use http://www.goodsearch.com/ instead of google for your searches. Be sure to identify your charity before you search. For each search you do, a penny will be donated to the charity. Doesn't seem like much? Imagine 10,000 searches a day from around the world. Imagine a million searches a day. You get the idea. This is the power of concerted action, where individually what we do is very small, but on a larger scale, it makes a difference. And thank the advertisers who support the site.