For Winnipeg right now it's:
Tim Campbell, Winnipeg Free Press - Highly respected journalist who's been around from the Jets days and still has great contacts in the game. He broke the Kevin Chevaldayoff story.
Also, Gary Lawless is the Free Press columnist who has covered the NHL relocation story over the last couple years and will continue to do so.
And Paul Friesen from the Winnipeg Sun.
Bob Irving is the most well respected sports radio journalist in Winnipeg, he works for CJOB.
Those four are trusted.
Twitter links:
@garylawless - Gary Lawless, Winnipeg Free Press
@friesensunmedia - Paul Friesen, Winnipeg Sun
Also @NHLinWpg is the current twitter account used by the team, it started as @driveto13 during the ticket drive and then changed to @NHLinWpg - I expect it will evolve into the official team twitter account when the name is announced.