For those that don't know about it, you can set Goodsearch as your home page so that every time you do a search you're raising money for your favorite charity. All you need to do after setting it as your home page is set the charity of your choice. Goodsearch is powered by Yahoo, so the search results are high quality. Each search generates about one cent, which quickly adds up!
There is also Goodshop, where you can have a percentage of your purchase from participating online stores go towards the charity of your choice. All you need to do is follow the link to the store before you shop there. Up to 30% of your purchase will go towards your charity! There are currently more than 500 stores participating in this, so make sure to check out the list before purchasing online.