What Works in Education.
Ongoing series of free webinars is one of the field's most respected resources for free online professional development overviews delivered by some of the most renowned experts in early education. This help allow you to participate in conference-quality training without leaving your home.
ASCD Video Series
Source for continued professional development related to the best instructional practices. The site is easily searchable by Subject, Grade, or Topic as well as a combination of any of these.