Just wanted to point over to the CanonWars blog (see here and especially here), where there are recent Lucas quotes. Lucas re-iterates and expands upon the assorted "parallel universe"/"two universes" sorts of quotes that he's been making since 2001, which (as we know) nullify the efforts of some to use Star Wars novels and reference guides (including children's books created by Vs. Debaters which were an attempt to 'adjust' the 'evidence').
While I'm saddened by the knowledge that some will continue to embarrass themselves by suggesting otherwise despite seven years of quotes on the matter, the simple fact is that by the standards that the Vs. Debate supposedly uses, the Expanded Universe is objectively invalid, and its continued use is a subjective choice to deviate from the standard.
Consider this a sort of epilogue to the State of the Debate 2008 post.