Midi links:

File collections - Guidelines - Contests - Soundfonts - Composers

Midi file collections

The Classical piano midi page
The sound site - About 19000 midifiles from all genres & big archive of soundfonts

Midi information / guidelines

A midi overview - Good starting point for beginners
MIDI Technical Fanatic's Brainwashing Center
Harmony Central - Good place to start looking for specific midi (& other music) info
Cakewalk Desktop Music Handbook
Sequencing tips

Midi contests

T.O.S Midi contest
The MIDI Studio Consortium
Miditrax Mighty Midi Contest

Soundfonts

The Sound Site - Probably the biggest archive of soundfonts, unfortunately without comments
HammerSound - My second favourite: Archives include desriptions & reviews
SoundFont Central - Archives are including comments, Tutorials about recording
Vienna Soundfont Studio - The standard for creating and editing SoundFonts.
The Art of SoundFonts - Good tutorial for Vienna SoundFont Studio. PDF-Format, requires Acrobat Reader.
Ethan Winer's article about Vienna
M-Station - SoundFont section includes info about SoundFonts under Linux
SoundFont Compression Tools: SFArk, SFPack, WinZip, WinRar
MegaFont - Enables dynamic caching, solving memory-problems with Live! cards

Midi composers' personal homepages

Excellent resources for great original music! My favourite composers of original midi music:
Seth Neufer
Palmai Krisztian
Arthur Rubinstein
Vic Sagerquist
Brandon Spangler

Other music ressources:

Album reviews - Musical styles - Music theory - Guitar links - Misc.

Album reviews & Music recommendations

Album reviews:
All Music Guide (AMG) - Album reviews & biographies for all styles
Rolling Stone Reviews
Sonic.net Album Reviews
Music-critic.com
Daily Vault Album reviews
Filmtracks.com - Movie soundtrack reviews
Recommendation lists:
Julian's Rock List site - Huge archive with 'Best albums of all time' - lists
All time Top 100 Albums - And another one... A summary of lots of other lists
Ultimate classical collection - Recommendations for each period of classical music
Building a classical CD collection - Recommended classical works

Musical styles: Background

All about Jazz
Essentials of music - Classical music & composers
All Classical Guide
Classical.net - In-deep resource for classical music. Includes periods, composers, recommendations, etc.
Naxos learning zone - Explains some basics of classical music, incl. recommendated works.

Music theory

Gary Ewer's 'Easy Music Theory' - Essential basics in music theory - for free
Composition theory
Counter pointers - Detailed information about the technique of counterpoint
David Rubenstein: Philosophy of Midi composition
Midi-based ear training - For intervalls, chords & scales
Multimedia Music Glossary
Multy-lingual music glossary - Translates musical terms between English, French, German & Serbian.
For more music info also see Knowledge.

Guitar links

Guitarnotes - Everything about guitars
OLGA - Guitar Online Archive - Excellent ressource for guitar-tabulature
Rogue's Gallery at Robin Trower Homepage - Guitar heroes: Info, biography, style...

Misc.

Worldwide Internet Music Ressources - Good starting point for music related research of any direction
Tourdates - Archive of international tourdates
JohnWilliams.net - Everything about the great composer of cinematic themes and his music

Entertainment / Misc.

Cinema - Games - Html - Knowledge - Press - Shopping - Other stuff

Cinema

Internet Movie Database (IMDb)
Film.com
All Movie Guide
CyberKino
FilmDienst

Games / Walkthroughs

GamingHaven
All Games Guide
Gamepad.de

Html

FreePolls - Guestbooks and Polls for your homepage
SelfHtml - Hervorragende Anleitung für die Entwicklung eigener Html-Dokumente
Meybohm's Html-Editor - Nützliches Freeware-Tool zur einfachen Bearbeitung von Html-Quellcode
Webmasterplan Html-, Link- & Meta-Check, Bildkomprimierung,...

Knowledge

Encyclopaedia Britannica - The whole encyclopaedia online - with additional articles and links
Wissen.de - Deutschsprachiges online-Lexikon
YourDictionary - Huge list of online dictionaries for all countries & topics
Nobel e-Museum - Winners of the nobel prize for literature, incl. bios & background info
For music glossaries also see Music theory.

Press

Newspapers Online - List with thousands of newspapers from all countries
Zeitungen.de - Liste deutscher & internationaler Zeitungen
The Times
New York Times
Wahington Post
Sueddeutsche Zeitung
Frankfurter Allgemeine Zeitung

Shopping

Amazon.de - DIE Adresse für Bücher und vieles mehr
Adori.de - In Sachen CDs meist deutlich billiger als Amazon
RP-Chords-de - Große Auswahl an Noten und Songbooks

Other stuff

Hugo award winners Award list for SF-literature, incl. book reviews
Digital Blasphemy - Great render-artwork, excellent free wallpapers for your desktop
Homepage Daniel Kraus - Studienplatztausch: Infos rund ums wie, wann und warum
Homepage Christian Reinke - Für Mediziner an der Uni Marburg: Altklausuren!
SmartSurfer - Verwendet beim Einwählen den gerade günstigsten by-call-Anbieter. Zeigt allerdings Werbung.
TelTarif.de - Immer aktuelle Liste der gerade günstigsten Internet- & Telefonanbieter