Three Massachusetts court rules were recently amended, effective May 1, 2010.
Mass. Rule of Appellate Procedure 20 "has been amended to require attorneys to include their e-mail addresses, if any, on the front cover of briefs and appendices."
Similarly, Mass. Rule of Civil Procedure 11 "has been amended to require attorneys and unrepresented parties to include their e-mail addresses, if any, on pleadings."
Finally, Mass. Rule of Civil Procedure 10 has a new subsection (e) which states that "The text of any document may appear on both sides of the page."