The Golf Course Superintendents of America produce webcasts every month on agronomic topics.  Yesterday Andrew and I watched Dr DaCosta of UMass give a presentation on winter injury of turf.  There is a great deal of new research coming out on why winter injury to turfgrass occurs and on the management techniques you can implement to help prevent it.  The webcast provided a lot of this new information.  Yes that is Andrew pictured in one of the presentation slides.