Brian Scarbeau has an announcement in his blog about a series of web casts he is presenting for high school teachers. It is all about using Dot Net Nuke. Brian uses DNN for his own web site and as a teaching tool in his web design course. Visit Brian's blog for more detail on these webcasts including dates, times and registration information. Brian is a great instructor and I highly recommend him. You can register for Brian's workshop webcast from MainFunction the high school computer science teacher community site.
Edit: More information about webcasts for high school computer science teachers may be found at www.mainfunction.com/webcasts There are a number of interesting and useful webcast series coming up.