Has anyone ever used Kiva before?

I saw a special on 60 minutes that really intrigued me. In a nutshell, they provide a web interface that enables regular old folks like you and me to provide small loans to people in developing countries who want to start a business.

For example, you can provide a loan to a guy in Kenya who wants to advance his sheep farm. The web site connects you and enables you to negotiate the details, then you put up the money, and amazingly, people usually pay it back with interest. And you get the joy of helping someone fulfill a dream!

Most of these people are only looking for less than $2000. I’m really interested… but has anyone out there done this before?