
There are a number of websites that make a contribution to a charity whenever you use them. The one below is a bit different.
Ecosia www.Ecosia.org is a search engine run by a non-profit group that uses 80% of revenue generated by leads to protect the Rain Forests.
I have put it on my desktop without any problems, it simply changed the little search box on the top RHS from 'Google' to 'Ecosia'. Every time I have used it, a small fee is paid to Ecosia and this is used for their work on the rainforests. I figure appears in the bottom right of your screen telling you how much rainforest you have saved.
If you find other websites that donate to environmental charities let us know.