How did I not know about this? This is the very idea that won the Nobel Peace Prize a couple of years ago and now its gone viral on the intertubes. Apparently the payback rate on these loans is over 95% - maybe Citibank and Bank of America need to take some lessons.
The website lets you loan as little as $25, bundling it into a larger loan. Kiva lets you form or join groups and tracks which groups contribute the most. It should surprise no one that the second largest contributing group are the "Kiva Christians" -- the largest being "Atheists, Agnostics, Skeptics, Freethinkers, Secular Humanists and the Non-Religious."
I'll be looking for a suitable borrower on the site and posting info here for anyone else who wants to help out.