No offense, but I've found cmmtalk completely worthless. The general forum has had 8 posts in 2 months, 3 of them from you, 2 of those trying to drum up sales, 1 another person trying to advertise. No posts in the Zeiss hardware forum in 3 months. The place seems mostly dead.
The software specific forums most of the manufacturers offer are much better, I've heard nothing but praise of the DC DMIS User Forum and I've had good luck myself with the Zeiss IMT Calypso forums. I hear the German Calypso forums are really excellent, sadly I do not speak it.