Hal Leonard's wonderfully updated version of the Music 3.0 guide includes new interviews, expanded sections and must-know information if you're a musician working in the digital download world.

Back in the day, you'd go into a studio, record a demo, and literally send out cassette tapes. No more. Now you need to know how to navigate the very complex waters of the worldwide web, and this guide will take you safely through the rough passages.

Owsinski covers everything from YouTube and Internet radio to marketing techniques with social media and how to understand the value of Twitter, Facebook, and the various monetary streams.

Record stores are gone. Vinyl is virtually extinct (though it's making a bit of a comeback now as a nostalgic notion). Music is something you don't see or touch but you invisibly download into your computer or onto an MP3 device. It's a new world order--and not necessarily a better one--but it's here nonetheless. If you want to earn money writing and playing music, you need to read this book.