Audio Resource

Noteflight - A free online music notation program, also with pay options. MuseScore - A free downloadable notation program, for PC and Mac.Blanksheetmusic.net - Blank sheet music you can print with tons of customizable options.

Audio Software & Loops

Audacity - Free audio recording and editing software for Mac and PC

Myna - Online looping software/sequencer similar to Garage Band and Mixcraft, with live recording options.

ACID Xpress - a free, slimmed down version of Sony's popular looping software.

Traverso - another downloadable DAW

Audio Expert - Simple online audio editor and file converter

Kjaerhus VST Plug-ins - great collection of classic audio effects (Windows only)

Little Drummer Boy - a downloadable drum matrix, lots of options to import and tweak your own samples. Kind of old, but still lots of fun.

Free-Loops.com - Free loops and VST plug-ins

Free SFX - copyright free sound effects and music loops