Evidence-based policy in education?

The University of York maintains this Best Evidence Encylopaedia UK. Largely schools focused,  BEE "reflects an original US version which was created by the Johns Hopkins University Center for Data-Driven Reform in Education (CDDRE) with funding from the Institute of Education Sciences, US Department of Education".  The site is "intended to give educators, policy-makers, and researchers fair and useful information about the strength of evidence supporting a variety of programmes available for pupils of both primary and secondary school-age".

The rate at which latest updates are being added is very low, and the site has a disappointingly untended feel. I would be very happy to be corrected.