Sources

http://www.charitywater.org/

Charity Water uses %100 percent of the donations it recieves to give clean drinking water to poor undeveloped nations.  According to Charity Water, 1 in 6 people do not have clean and safe water to drink.

http://www.freerice.com/

This website is full different games and quizzes to test one's knowledge, what does that have to do with charities you ask?  Well, for each correct answer, Free Rice donates 10 grains of rice through the UN World Food Program.  The rice keeps adding up in a bowl next to your quiz, so when you are bored through out the day you can gain knowledge and simultaneously feed someone in need.