Derek Sivers (sivers.org), creator of CD Baby, and basically a zen warrior, fighting for the betterment of musicians the world over. His blog is fantastic.
"Embrace the Remix" a TED talk by Kirby Ferguson on the myth of originality.
Ira Glass on storytelling. The host of NPR's "This American Life" gives some great advice to those who are just starting to explore the world of creativity.
"Why You Need to Fail" a talk by Derek Sivers on the benefits of failure and the challenges of growth.
Software / Apps
Reaper, an open-source and affordable sound/music editing program that is every bit as good as the big-name players like ProTools or Ableton.