Divining standards from the most popular sites?
While I'd never jump to the conclusion that being one of the most popular sites means you have the best design, I would concede that it means you probably haven't committed as many design sins as Boo.com. [Maybe we should just call design flaws "boo-boos"...]
I also think that many developers who are not experienced in the intricacies of UI design and usability should, whenever possible, copy aspects of well established designs rather than try to invent their own "creative" solutions.
I think it's interesting that Disney differs greatly from many of the other sites. I'm sure Jared would have a few words to say about that given that he seems to rip Disney in almost every interview, article, class, and book. You'd think Disney was the only bad site on the web.