Here's a bunch of my favourite stuff that I use to make music. You can find this stuff all over the web, but I wanted to make my bookmarks available for some friends.

Acid

MP3 Decoder

A great site with heaps of stuff for recording at home

Real audio tools

FruityLoops

HarmonyCentral - for musicians

Cool Edit!

MP3.com

Virtual Turntables

LAVA stuff for your MP3s

Hammerhead drums

Download.com's MP3 audio stuff

Winamp

I love Rebirth

Breakbeats to sample

Abe's MP3 Finder

Sonic Spot

Free guitar effects

Sound bites n stuff

A great messageboard for electronic music phreakz