Postmedia cancels print deliveries to schools due to cannabis advertisements BY Some of Postmedia’s newspapers are displayed in Ottawa on January 8, 2010. Weak print advertisement revenues weighed heavy on Postmedia’s fourth quarter results Thursday, and the media company doesn’t expect any improvement into next year as it works to turn around its operations. THE /Adrian Wyld Some of Postmedia’s newspapers displayed. THE/Adrian Wyld