Tools to help students edit

Eric Curts recently shared a blog post with a variety of student tools to improve writing.  I saw the SAS Writing Reviser for Google Docs.  While I have used SAS tools from their website, this is the first I realized there was an add on!  (Students will have to enter a parent email to have the account activated).  From sentence economy to sentence tools- it offers a variety of ways to help students improve their writing!