Summer is the perfect time for teachers who want to catch up on some Professional Development for which there was no time during a hectic school year. For those of you not wanting to travel to a conference but yearning for some engagement and interested in some on-line courses, Coursera offers courses on instruction, emerging technologies, and more. The classes are part of the free Coursera Teacher PD that runs all summer long.
Take a look and see if there is something that suits your needs.