Donating to charities is easy. There's no need to create a third party, whose trustworthiness may be very difficult to determine, to assist people in donating.

Here's what I do:

1. Pick 3-4 charities that help in areas I care about the most.
2. Research charities to find out how much money goes to the actual cause. Charities that post reports by reputable auditors helps me make my decision.
3. Decide how much to donate.

That's it. Most charities accept credit card and paypal so there doesn't appear to be many barriers.