| musictheory.net and teoria are great online resources.
As far as books, I highly recommend Music Theory: A Practical Easy to Use Guide for Bassists by Sean Malone. It's a Hal Leonard book. It's loaded with information, and presented in a very thorough, easy to follow manner.
And of course, the best way to learn and really internalize chords as a bassist is to learn to walk. Ed Friedland's Building Walking Basslines is a great place to start. |