Links:

All Rock MIDI - Hundreds of files in various genres of rock. To access files go to the "archive".
Andrew's Midi Music Site - Rock, pop, and bit of everything.
Axemaniac's MIDI Files - Dedicated to providing a good selection of MIDI files mostly rock orientated, old and new such as AC/DC and Offspring.
Beautiful Loser's MIDI Page - Hundreds of rock MIDI files.
Braaar's MIDI Stuff - Large collection of heavy metal and hard rock files, sorted by band.
Damage - Dedicated to heavy rock.
Dustin's Midis - Over 100 Rock, and Metal Midis.
Free Classic Rock Midi Files - Classic rock MIDI files to download listed with title, artist, and file size.
Free Classic Rock n Roll Midi Downloads - Free rock MIDI files, with code and instructions for use on a web page.
Gary's Room - The Big 80's MIDI Archive - Collection of sound files.
Jay Dog's Midi Mania - Over 100 rock MIDI files.
Joe's Midi Page - Modern and classic rock MIDI files, with bands like Queen, The Offspring, Blink 182, and Eagles.
Lots O' MIDI - Files from many modern bands.
MIDI Internet Porthole - Free MIDI files by Beatles, Hendrix, and Zappa.
MIDI Mama's Music - Classic Rock and Roll MIDIs from the 50's through the 90's.
MIDI Universe - Free MIDI files for download.
MIDI Vault - Quality MIDI files sorted by artist.
MIDI songs - The Backstage Magazine top 10 MIDI files.
MajestyPage - Heavy metal and power metal MIDIs, plus Winamp skins.
Mark's Metal Midi Band - Mostly Megadeth and Pantera MIDI files.
Meph's Metal Midi Mausoleum - Heavy metal MIDI files from artists like Ozzy and Fates Warning.
Metal Elf'S 80'S Metal MIDI - Contains about 30 hard to find metal songs from the 80's.
MidiMaven.com - Free access to over 1280 artists' files, software, hardware, and sequencers.
Sarah's MIDI Website - Features tunes from Elvis, the Beatles, and CCR, among others.
Sunny's Classic Rock MIDIs - Classic and southern rock, listed alphabetically by artist.
The Badger Burrow - A few personally sequenced classic rock files.
The Hermit's MIDI Retreat - Pop and rock songs by Abba, Bee Gees, Eagles, and other related links.
The Jerry Lee Lewis Site - Files from the 50's and 60's.
The Procrastinator's Paradise - Rock MIDIs by Korn, Tool, NIN, Blink 182, Offspring, and Rage Against the Machine.
Titanium91's MIDI Outpost - Small collection of rock, alternative, and video game MIDIs, includes selections from AC/DC, Kiss, and Ozzy.
Todd Rundgren Music Files - Many files with some RealAudio, AU, and WAV.