If you found Petrus Technology and are interested, you’ll also be interested in TCAD Central. TCAD Central was originally started by Michael Duane and is now maintained by Juan Sanchez. Juan maintains links to many TCAD subjects, of particular interest to many will be the software page. Be sure to submit anything that you know of that is new, or updates. http://www.tcadcentral.com
The National Nanotechnology Infrastructure Network provides software and computational resources at universities. http://www.nnin.org/
Nanohub provides tools and computational resources in a managed environment. http://nanohub.org/
