Backpacking:
Backpacking Check List 
REI Backpacking checklist
My List
The Ten Essentials

Trekking Checklist
Alps Haute Routes

Weekend Equipment List
Lodge trip with day hikes
What To Wear and Bring Hiking; Gear; Apparel; Clothing at uncommonyukon.com
My backpacking gear setup - Mike Malley - YouTube
Links:
Equipment advice and tips
Dealers/stores