Up-voted for webmonkey alone. That site was kick ass back in the day... glad to see it's still around, but I wonder how relevant it is.
They could definitely use a redesign though... the nostalgic shtick only lasts so long.
It's fun to split these right down the middle into interface design and application design. They tend to fall almost completely into one of those categories.
I would add relatively a new website called http://highscalability.com It has information about how highly scalable websites have been built.