New XHTML Validator.
There is a new (beta) version of the XHTML Validator at the W3C. This new version offers a much needed improvement - explanations on why things don't validate, rather than cryptic error messages. This site is not validating mostly because of the bookmarklets - looks like a good 1/2 hour to fix if I do it now (from the library). I'll wait until I get home and have a good HTML Editor to assist me.