I've spent hours searching the net for Sheet Music, Music Games, Educational pages, Midis, Music Software etc. These are the best of what I've found.
MUSIC EDUCATION SITES & MUSIC GAMES
Kevin Fairless Sibelius Site - Amazing worksheets, flashcards & resources for theory & piano. My favourite are the scale diagrams with finger number written on the keyboard picture.
Kids Music Software Games
Little Einsteins Website
Musicards.net - Online Music Flashcards for learning notes, key signatures, intervals, triads & more!
Royal Schools of Music (Examination Board)
Sibelius Education - Music Software for Aural, Theory, Composing, etc
Sound Junction (Interactive)
Trinity Guildhall (Examination Board) - Download all the recent theory exam papers!
FREE SHEET MUSIC - Some are shops offering some free samples & free first page
8Notes.com - Free Sheet Music, riffs & lessons
Allegro Assai (Some Free Samples - mainly Classical)
AnyScore.com (Classical Sheet Music)
Carolina's Free Sheet Music & Transcription
Christmas Carols & Lyrics
Christmas Music Links
Clarinet Sheet Music & Resources
Easy Sheet Music - piano
Emily's Music Page - A large selection of popular sheet music.
Finale Showcase
Free Modern Sheet Music Links
Free Piano Music.com
Free Piano Sheets.com
Free-Scores.com - the free sheet music directory
Free sheet music.net (A large catalogue of free sheet music sites)
GuitarSite.com
Harmony Central OLGA (On-line Guitar Archive - Lyrics & Chords)
Ichigos Sheet Music - Music to Games & Anime
Jazz Sheet Music
MFiles.co.uk
MidiScore - Russian website with large selection of pop music.
musicnotes.com - Massive selection of sheet music with first page sample free. Buy from musicnotes & support this site!
Music Scores.com (Free Classical Scores & pay to print popular scores)
Muzika - Large selection of free popular songs
MySheetMusic.com (Over 500 Free Samples)
MySongBook.com - A Huge selection of guitar-pro tabs
Net4Music - (Free Samples of first page)
NWC Scriptorium (Noteworthy Composer files)
Piano Angel - Masses of Movie music & more!
PianoFiles.com - Piano music to download for today's latest hits!
Pianome (Free piano sheet music)
Piano Rock - Heaps of info on rock pianists & a few free transcriptions
Piano Sheet Music Exchange
Piano Tabs
Pianotte - Vast selection of Pop & Rock piano music in pdf format.
PraiseCharts.com - Largest selection of the latest Christian Music on the net - incl full scores for worship bands.
ShareSong.org - Christian Sheet Music
Sheet Music Archine - loads of free classical scor
Sheet Music Direct
Sheet Music Now
Sheet Music Plus
Sheet Music Resources on the Net (A well set out newsletter reviewing free sheet music sites)
String Stuff
Violin and Viola
Virtual sheet music shop (Classical)
Words & Music - Intermediate level piano arrangements of some of the latest chart hits. (pdf format)
Words & Music - Mirror site (same as above) but all files are in Smart Music/Finale Viewer format.
Yahoo Sheet Music Sharing
