Working group members Leigh Tesfatsion, Steve Widergren and Koen Kok presented an IEEE Smart Grid Webinar on Transactive Energy Systems earier this month. You can access the recording of the webinar at: http://smartgrid.ieee.org/resources/webinars/past-webinars?eid=66&m=d7ad069d3940ebcaaf9ce65812521293.