Use Edmodo not just in the classroom but for collaborating amongst teachers and across schools within the same district. I am an K-5 Tech teacher and am spearheading this initiative within the elementary. I maintain the student pages as well teacher page. This way I can keep teachers in the loop but constantly updating on new websites they can use in the class and letting them know how their students are doing in my class. Edmodo motivated students because of the Facebook like interface and the collaboration amongst their classmates. Students learn how to work together in a safe environment, while the teacher monitors their progress and manages the page.
By far the best way to keep teachers up to date on all the web tools available for their content area.