The Mountain is worth it for the entire CD, by the way, not just "Dixieland". But then, we're big Earle fans in this house.
The Original Unofficial Steve Earle Website is here; I think it's as close as he gets right now to having a site. He's also on New West Records.
"Fort Worth Blues", his tribute to Townes Van Zandt, is also a great song. Transcendental Blues is probably my favorite album but since it's his usual country/rock and not bluegrass-y it's quite different from The Mountain (although most of his mature albums have something Celtic-flavored on them; on TB it's, obviously, "Galway Girl").