Billionaires giving away fortunes to save the world

[ahlam1399]

http://img-s-msn-com.akamaized.net/tenant/amp/entityid/BByd1Yu.img?h=100&w=100&m=6&q=60&o=f&l=f&x=382&y=711Think billionaires don't share their wealth? Think again. From social media magnates to tech titans, here are some of the most generous people on the planet and the causes they donate their money to.

أكثر... (http://www.msn.com/en-ca/money/topstories/40-billionaires-giving-away-fortunes-to-save-the-world/ss-BBE8Ynu?srcref=rss)