igloo builder wrote:...With the advent of the Internet, one really shouldn't need to go to a "physical class". ...
You might think so, but it turns out that not everyone is competent at reasonable self-evaluation of their capabilities under stressful situations and some simply aren't good at paying attention or working through verbal descriptions of situations, so they are unprepared mentally and in some cases, physically, for the extremes that winter in the mountains can produce.
The San Diego Sierra Club Wilderness Basics class is designed to expose absolute newcomers to the outdoors to increasingly more demanding situations, so, if you began a 'virtual' class with people who had more experience, then you'd think that you could bypass some of the easier stuff, like car-camping.
On the other hand, those same folks who have neither experience nor good judgement, could produce serious problems for you on an actual outing. You really wouldn't want to show up at the top of the tram with a bunch of folks you didn't know, except through the internet, who regarded you as their guide, unless you have a lot of personal liablility insurance.
For those with solid backcountry experience who simply want to learn winter camping skills, the commercial programs may be the most efficient way to proceed, in lieu of experienced and capable friends.
That said, it's great fun to babble on about how to have fun in the snow.
So, Igloo Builder, have you ever used an IceBox ,
http://www.grandshelters.com/, to make your igloos, or are you a block sawyer? I sold my IceBox, because I usually do igloos with 6 or more people and with a crew, a couple of saws and two people on the inside is as fast and more fun than two shovelers and a form tool?