As the grey on this music nerd's head continues to expand, I can tell you with a high degree of certainty that Myspace Music is still the optimum means of discovering new music. Clicking on the friends, and the friend's friends, and the friend's friend's friends of bands that you're currently digging on will lead you to all sorts of goodness.
And don't just stick with your genre comfort zone! Expand thine musical tastes!!
:who can i follow on tumblr?
:where else can i find out about cool bands?
:i already read ricks blog.