Christine Hurt of the Conglomerate blog is a University of Illinois law professor. For spring break, she took a law school class out into the field to learn about microfinance.
Where in the field? Malawi. Really. Her first blog post on the topic is here - it's well worth reading. Consider, for example, this part of the adventure:
"So, the students not only got to talk to real microborrowers, they also got to walk the 4.5 miles that a villager would have to walk to go to the bank."