Adopting WCAG 2
http://www.dingoaccess.com/accessibility/adopting-wcag-2/

Hudson, Roger
DingoAccess
2009

Abstract:

It is six months since the release of WCAG 2.0 and I thought it might be interesting to see how extensively it has been adopted as a bench mark for determining web content accessibility. Over this time, I have felt that the rate of adoption has been relatively slow and the number of countries and other regulatory authorities now using WCAG 2 is lower than I expected.