Less than a week after the introduction of GarageBand, five new Web sites are ready to serve users of the music creation software. Among them is GarageBandExchange, GarageBandCreations, GarageBandUsers, SonicCat, and AppleGarage. Be sure to check back with these sites after GarageBand ships on January 16 as part of iLife ’04 to see what features they will offer users.