This article describes how teachers who were once isolated by distance and the nature of their jobs are connecting across schools in online professional learning communities. While riding the wave of technology, St. Mary's County Public Schools in Leonardtown, Maryland, is providing a connection for teachers that extends beyond school walls.…

This article reports key findings from a 2-1/2-year mixed methodological study of professional learning communities, the first of its kind in England. In particular, the concept of effectiveness is explored as it relates to professional learning communities. We describe three ways in which effectiveness can be construed, arguing that any…