If you’re familiar with TNTmips, I recommend pointing your browser to TNTtalk, a new forum that’s started at Google Groups. According to the TNTtalk moderator:

The group is the meeting point for users of MicroImages’ TNT products: TNTmips, TNTedit, TNTview, TNTserver, TNTsdk, TNTlite, and TNTsim3D. The aim of the group is sharing ideas and methods on accomplishing geospatial tasks. Ask questions, provide information on your projects, and demonstrate your skills.

For those who’ve never heard about TNTmips, it’s a geospatial software package (for GIS and remote sensing).