In order to support the poor people in developing countries around the world, many microfinance institutions have been established. Different from the massive banks or global financial organizations, microfinance institutions are usually local and only provide small loan to poor people.
I guess the most people have the same experience with me, heard about "microfinance institution" this words due to a news about the banker "Muhammad Yunus". He advocated the concept of microloan and hope it could help more people out of poverty in his country, which successfully gave rise to the attention from public. Such institutions focus on local region, accept requests from poor people and did not seek for high profit. Of course, to maintain and keep organization running needs a basic level of profit but they do their best to keep the balance by offering low interest rate to their loan.
You may ask: is it high risky to lend money to poor people? Microfinance Institutions do not supply their loan without any condition. They have their way to judge the status of each case and try to avoid any potential risk. Whatever, The idea of microfiance institution is very cool and would make our world better. The question is how do we encourage more establishment of microfiance institutions in our world? For example, people like us who have limited capital but would like to involve themselves into this field, they probably don't have enough fund to support the operation.
What if there is a online platform for these microfinance institutions to gather fund from Internet users? The only thing they need to do is to reveal the accommodator brief backgound they have on the web platform and wait for the funding from Internet users. The role of Internet users is a kind of philanthropist. The interest guarantee for them is 0%. However, all funding activities would be recorded and published on the web pages to honor their contribution. For microfinance institutions, they still offer the low interest rate loan to poor people when they receive funding from Internet users but have responsibility to monitor borrower's repayment and notice the Internet users who provide the fund. Although there are still some conditions for microfinance institutions which want to coorperate with this web platform, it is comparatively heavily reduce the finance barrier for them to operate. Sounds great right? That's
Kiva! A truely social enterprise based on web 2.0 concept.
What are we waiting for? lets do our best to make this world better!

PS.
If you are not familiar with Enlgish and only want to focus on Taiwan region, there is another option for you to join social activities or involve yourself into social enterprise:
Flow, Inc., founded by Steve Chang, Chairman of Trend Micro, Inc., and Tom Wang, the famours writer in Taiwan. Their goal is to fund valuable social enterprise project in Taiwan.
Public welfare 2.0, established by online jobs service "104" in Taiwan. A very similar one to Kiva but only allows Internet users to donate.