If you are not already aware of the new report, A New Day for Learning, you should be. Given the early buzz, this report of the Time, Learning, and Afterschool task force, funded by the C. S. Mott Foundation, is likely to have a lasting impact on the way we view time for learning.
Of course, I have not read it yet, which is why this post says "Part I." I will provide comments once I digest it!
The Edutopia website hosting the report also includes several interesting commentaries. Jodi Grant of the Afterschool Alliance provides a good review of the political and funding landscape for after-school programs.