A chapter from a new book by Kynn Barlett, Browser Support for CSS on webreference.com is 8 pages long and is a good overview of the browser situation now and the history of browser adoption of CSS. The chapter title “Browser Support for CSS” gave me the idea this would be a table showing how each browser supported each CSS property, but it isn’t that at all. If you teach and need a good resource for an overview about the growth of browser support for standards, this is an excellent reference. The chapter is hour 3 from Sams Teach Yourself CSS in 24 Hours
I haven’t read the entire book and can only recommend this chapter as a good resource for teachers.