Here's a Haynesville/Bossier map I recently found.
H.S. Map
This is a map of "organic" natural gas charged shale.
H.S. activity map overview.
This is good EXCO map.
Notice that EXCO believes they have between 2-5 Trillion cubic feet of natural gas in just their yellow areas.
This map is from the Dept. of Energy. This map represents where they believe there needs to be more natural gas lines.
This is that new Tiger Pipeline (48") that will be open in summer of 2011.