Actually, check out givedirectly.org. They focus on unconditional cash grants in an extremely data-based way and the results are far superior to Kiva in poverty reductions and overall outcomes.
They've also already begun a 12 year experiment of universal basic income in Kenya in order to test it long-term in a way that's never been done before in history.
Thanks for the tip - I thought I had not heard of GiveDirectly.org before but I now realize they are mentioned on the Rationally Speaking podcast I listen to. I'll check them out.