Web Design Sources

A recent web design blog assignment requires students to "analyze quality discipline-specific information from various sources." When the kids asked what discipline specific meant, I explained that citing uncle Bob was probably not a quality source for web design concepts.
In addition to books I have or have found online, here are a few sites I recommended to the kids: Webmonkey, Smashing Magazine, WebDesign.org, NetMagazine and TutsPlus.