Gamelan      F    J    G    VR    X    A    V
Great resource for web developers -- Lots of info and links to Java, VRML, ActiveX, etc. resources and example pages. (Not sure if this site itself implements all of the mentioned features, but it has links to plenty that do.)

D.J. Quad's Ultimate HTML Site      J    G    X
Your one-stop Web site publishing guide. From beginner to advanced, you can find something useful here. Tutorials on topics like tables and style sheets, editors you can download, and answers to questions of all levels. Naturally, you can find examples of cool web tricks here, too.