Drupal groups are hosting Webminars (one lesson a week 10-20 participants).
http://www.webavant.com/dojo1/
http://webavant.com/vncviewer/
http://groups.drupal.org/node/3825
The how-tos to partcipate (step by step)
http://groups.drupal.org/node/3846
UltraVNC server
http://groups.drupal.org/node/3097#windows
We have problems to install WebHuddle to host webminars.
Our Servint.com webhosting are requesting a contract of VPS PRO SOLO 219$/months 1500GB transfer $99 Setup P4 3.0 GHz 800 MHz Front Side Bus (FSB) 5 GB Burst RAM 2 GB Guaranteed RAM 4 IP Addresses 30 GB Free Backup Server Space Additional Backup Space $1/GB Unlimited Domains Unlimited User Accounts CentOS 4 Operating System 100% Of CPU Guaranteed
Toni from Webavant.com (Drupal Dojo) where using Webhuddle, and suggest now UltraVNC. They are using Freenode.net.
How To Host a VNC Session (Dojo Style)
http://groups.drupal.org/node/3097
We are "A sea of doubts" (we say here) What are you recommend me?
Ferran