It's in the spirit of a blog to log other sites of interest, so here goes. Might as well nick some pictures off them as well.
Corning Museum of Glass - very good on the art and history of glass and glassmaking with useful crib sheets
Museum of Glass (Tacoma) - contemporary collection. And an interactive teach-yourself-to-blow game (kept crashing though)
Glass Notes - technical tasters from a book by Henry Halem and a couple of QuickTime film clips
Spectrum glass- a supplier of kiln products, but lots of technical information available too. They have filligree cane, which I am sure to be interested in.