Hi guys ... new to the forum here. I just posted some GTD-specific articles at the GTD forum, but I thought you guys might like some productivity articles from Zen Habits:

Top 10 Productivity Hacks:
http://zenhabits.blogspot.com/2007/02/top-10-productivity-hacks-overview.html

Top 20 Motivation Hacks:
http://zenhabits.blogspot.com/2007/02/top-20-motivation-hacks-overview.html

Jumpstart your day (the night before):
http://zenhabits.blogspot.com/2007/02/jumpstart-your-day-night-before-evening.html

Purpose Your Day - Most Important Task:
http://zenhabits.blogspot.com/2007/02/purpose-your-day-most-important-task.html

My Morning Routine:
http://zenhabits.blogspot.com/2007/01/habit-4-my-morning-routine.html

How I became an early riser:
http://zenhabits.blogspot.com/2007/01/how-i-became-early-riser.html

How NOT to multi-task: Work simpler and saner:
http://zenhabits.blogspot.com/2007/01/how-i-became-early-riser.html

Are your days crazy? Take control:
http://zenhabits.blogspot.com/2007/02/are-your-days-crazy-take-control.html

I hope these help! Please let me know if you find them useful.

Leo
Zen Habits
http://zenhabits.blogspot.com/