It's actually easy to help. There are many websites that you can donate food and such just by clicking a little bar. Or, like Facebook, get enough Lunch Money and use it to buy condoms to stop the spread of STDs and well, children. The main problem is, of course, too little money, but also, since they don't have many condoms, is that parents are dying and children are being created,when no one can pay for them.
But, I guess giving up a little of our non-needed hobbies and donating our saved money could help.
Maybe having a jar and putting all our pocket change in there. Then, at the end of each month/year, donate it. To save up for Logan's future, my sister does that. He also enjoys putting the "moneys" in it.