TV, Film, Music, and Other Media
 

Movies

The Internet Movie Database - Thorough online database of almost any movie you can think of, no matter how bad
The All Movie Guide - From the same people who do the All Music database
Upcoming Movies - Site for info about upcoming movie releases and productions
Angry Alien Productions - See your favorite films reenacted, in 30 seconds, by bunnies...

The Simpsons Archive
epguides.com - Episode guides to a huge number of past and present TV shows

The Internet Theatre Database - Limited so far, but attempting to duplicate the Movie Database's efforts for Broadway
The Internet Broadway Database - Another one, a little more complete
Broadway.com - Official Broadway supported site

General

The All Music Guide - Comprehensive online rating and biographical guide
Wolfgang's Vault - From the archives of the great Bill Graham
The Ultimate Band List - Index site for just about any rock group you could think of

MIDI

The Classical MIDI Archives
MIDI Farm - MIDI sight
MIDI Explorer - Search engine for finding MIDI files

Genesis

The Genesis Discography - HUGE document, contains almost any info you could want
Genesis-Midi.com - Source of MIDI files for Genesis songs