Helen Mongan-Rallis at the University of Minnesota-Duluth maintains a list of guides for using educational technology in the classroom and online. While many are written for higher education, Dr. Mongan-Rallis does teach pre-service teachers and always keeps an eye on what might be useful and available in the K-12 classroom as well.

Some of these guides are getting a bit old, but then, you may well encounter technology “in the wild” that dates  back to 2006 or even before!   So, I keep this set of guides bookmarked myself just in case.