Live Music Archive
One of the greatest tools available at anyones disposal on the internet, regardless of user level, is the Internet Archive's Live Music Archive. This contains tens of thousands of live concerts by bands both famous and almost famous. Just searching for "San Diego" reveals a diverse list including a two day Grateful Dead performance at the Sports Arena in 93, Jack Johnson performing at Street Scene 2004, and Tenacious D show from last year's ComiCon.
Quality can vary tremendously, but comments are usually present to indicate the good and the bad about each post. The concerts come in all different formats as well, and can be downloaded song by song or as a ZIP file of the whole show. I am still hoping that a recording of the My Morning Jacket concert at the House of Blues on 11/8/05 surfaces on the archive.org site or elsewhere.
