I was recently interviewed by SimpleK12 about our district's use of the Google Apps suite to motivate professional development.  We use primarily Google Docs and Google Sites to create a "one stop shop" for PD resources.  Each learning team has a shared folder for meeting agendas/minutes, data files and any other documents they collaborate on.  I think it's safe to say our staff appreciate the feedback loops we've created through the use of Google Forms surveys, too.  The professional development planning process has become much more transparent and dynamic.  Check out the video below for more information.