A List Apart
"For People Who Make Websites". In case you didn't know. Where the latest news, ideas and techniques are discussed, explained and demonstrated.

Web Development & Design Foundations with XHTML
Has a goldmine of links on everything from writing for the web, usability, wireframing, choosing a web host, building a store front...

Webmonkey
An oldie but a goodie. Tutorials on everything web.

W3Schools
Free development and web design tutorials and quizzes. Such nice Norwegians!

Webmaster World
Still can't get the info you need? Post on Webmaster World's forums.

Identifont
This is just sheer brilliance. Love that typeface you saw but don't know what it's called? Answer a few simple questions, and you soon will.

Fontscape
A font directory and companion site to Identifont. Search for a font by historical period, mood, simulation effect (e.g., stained glass or needlework) and more.