The Vast World of Educational Technology

Haven't read more than a few posts from this high school principal, but the ones I did read about using educational technology are interesting.
http://esheninger.blogspot.com/

I'm hardly familiar with more than a couple of the applications he discusses, and this makes me feel like a tech newbie.  There's so much more to technology in schools than the little I've gotten to know through working with assistive technology.