Good Lord of the Rings (and related) Sites
TheOneRing.net - Official Site
Lord of the Rings.net - Official Movie Site
The House of Mst
The Protectors of the Plot Continuum
The Encyclopedia of Arda
Henneth Annun
The Lair - Elvish to English Dictionary [Dead link. ~Archivist]
Msting
Humour
Edward the Less (from the makers of MST3K)