Microfinance has taken a beating lately for shifting far afield from its humanitarian origins, originally funding tiny businesses run by poor women in developing countries to feed their families. It's become a good idea gone bad, a charitable enterprise spoiled as profit surpassed people as the rationale for investment. It sickens the soul. But all is not lost. A new concept in which the interest charged on a microloan isn't a percentage, but rather an improvement to a community, has seen early success in Haiti. Although small in scale, this model might be just the thing to help microfinance rebound as an effective, credible and responsible method of funding small businesses lacking capital that don't qualify for loans from traditional banks. The concept comes from Zafèn, an online microfinance initiative approaching its first anniversary on April 1.