Just in case you haven’t encountered it before, I thought I’d mention the Hunger Site. Visit the website, click on the ‘click here to give’ button, and you’ve donated food to hungry people! No purchase necessary, it’s all funded by the advertisers on the following page.
You can click the button once a day (successive clicks don’t count). If you want to visit every day but keep forgetting, there’s a Facebook app that helps remind you – click to give.
The site has other tabs that raise money for other causes – breast cancer, childrens’ health, literacy, rainforest and animal rescue.
And a similar idea has been employed at the Bible Site – Open Doors providing bibles to persecuted Christians.