Official Mason Jennings Site
Mason's official home on the web features contact/taping information, tour dates and ticket information, videos, publicity info, album lyrics, and a spiffy site redesign with every new album!
Mason's Amazon.com Store
Amazon.com's "All About Mason" page has a few facts and collects all his albums (in CD and MP3 format) on one page.
Archive.org
Download (and upload, tapers!) complete Mason shows in .shn format.
Melt Away
Several MP3s from the 2001-01-11 John Munson concert featuring special guests, one of whom was Mason.
EPieper's MJB Tab Site
The original Mason tab site from which most of our tabs are borrowed (with permission, natch). Supposedly deprecated, you may want to check it periodically for updates.