Much like with most bands these days, MySpace is used by each of the bands for personal information, tour dates, and tracks to check out.
AbSynthe
Corpse Thriller
They're not too alike, though they share a couple of members and most of each's influences, and they're very friendly with one-another.
I don't see how they're going to turn that friendship into a supposed "war"-like tour, but we'll see how it plays out, I guess. They're both crowd-oriented, and seem to have big plans for entertainment on the tour. They're touring the northeast and parts of central and east coast US.
Tour dates:
Jun 20 2008 8:00P Portland, Maine
Jun 21 2008 8:00P Cambridge, Massachusetts
Jun 22 2008 8:00P Burlington, Vermont
Jun 23 2008 8:00P Jack Rabbit Slims in ALBANY, New York
Jun 24 2008 8:00P TRENTON, New Jersey
Jun 25 2008 8:00P Buffalo, New York
Jun 26 2008 8:00P Harrisburg, Pennsylvania
Jun 27 2008 8:00P Sandusky, Ohio
Jun 28 2008 8:00P Detroit, Michigan
Jun 29 2008 8:00P Chicago, Illinois
Jun 30 2008 8:00P Cincinnati, Ohio
Jul 1 2008 8:00P Greensboro, North Carolina
Jul 2 2008 8:00P Baltimore, Maryland
Jul 3 2008 8:00P Philadelphia, Pennsylvania
Jul 5 2008 8:00P New Haven, Connecticut
Jul 6 2008 8:00P Club HELL in Providence, Rhode Island
