This document discusses designing engaging professional development opportunities for teachers. It suggests that effective professional development allows teachers to be active participants, determine important content, and collaborate with others. Some specific engagement strategies mentioned include TeachMeets, which are informal conferences where teachers lead short sessions; EDcamps, which are conferences where session topics are determined the day-of; professional learning networks on Twitter; and job-embedded opportunities like coaching, reflection time, and lunch sessions. The goal is to move from traditional PD to active professional learning.