Few years ago, someone told me how their business started to improve after they had started to donate some part of their monthly revenue every month. I started to do the same and since then, my income has only increased.
You should first of all start donations with your family, is there anyone in your family who is less blessed than you are? Help them out.
If there's nobody in your family, then move on to your relatives and friends, neighbors, if you still don't find anyone, only then donate to charity foundations.
These foundations already receive a big amount of funding from corporations and millionaires, our little donation isn't going to make a difference, but it might make a difference in a relative/friend's life.