On the topic of breaking the cycle of children having children, I heard a really interesting story on the radio last night. It's too early to see the long-term benefits, but this program seems to be having good short-term results, if the story they told is typical (and I know it well might not be):

http://www.marketplace.org/topics/wealth-poverty/education/its-never-too-early-good-start-education

FWIW, clicking through to the program's website, they do document outcomes:

http://www.everychildsucceeds.org/Our-Outcomes.aspx

Tamar