Straight from the horses mouth:

“Want a free 1-year digital subscription to Linux Journal? This is your lucky week. Watch the daily Tech Tip videos this week and collect the secret letters hosts Shawn Powers and/or Mitch Frazier announce during the videos each day. Come this Friday, unscramble the letters to reveal the secret word(s). Everyone with the correct answer who responds by 11:59:59PM U.S. Eastern Standard Time March, Friday 13th, 2009 wins a free digital subscription to Linux Journal — it’s that easy!

Follow this link for further contest details, and good luck!”

OR: Follow this link straight to the source: http://is.gd/myDy