I found a website that might be of general interest [and noted that it's in Ireland]. School of Photography. I am in Boulder, Colorado right now and was looking for a discussion of shooting snow scenes, as I hope to get out today to do so. I found this site and its explanation was direct, simple and practical and thought it might be of interest to others.
The site also has other tips and on-line and other courses to take, but I can't speak to those. The snow tip was a good, short reminder for me and fit the bill.