Links

The Basics:

Joe Talmadge's Guide to Steel
Knife Types Infographic from Blade HQ
Knife Types Breakdown from Blade HQ
Blade Shapes Defined
Blade Grinds Defined
Carrot's Guide to High End Flashlights
Buzzbait's Guide to Water Bottles
Pocket and Keychain Organization
Sarxsvt's Guide to Bags and Packs

EDC Top 100:

I thought it might be handy to have a list of the Top Selling EDC products, especially if you are researching what to purchase.  To that end, find below the Top 100 products in each class as listed on Amazon.com.  The lists are updated hourly.  Think of this as the New York Times Bestseller list for EDC stuff.

Top 100 Folding Knives
Top 100 Fixed Blade Knives
Top 100 Flashlights
Top 100 Multitools
Top 100 Bags and Backpacks (excluding bookbags)

Written Reviews:


General EDC/Pocket Dumps

The New Artemis
RealWorld EDC
Pocket Philosophies
Knife Thursday

Assorted Gear

Trailspace (user submitted reviews, tons of items)
MilSpecMonkey

Knives

Bladereviews.com
EdgeObserver
Custom Tacticals
Spydercollector

Flashlights

Light Reviews.com
Lygte Reviews
Layman's Guide to Flashlights
LED-Resource 
SelfBuilt's Review Site

Pens and Paper

Pen Addict
OfficeSupplyGeek
Black Cover (great resource but not updated)

Multitools

Multitool Reviews

Packs

OneBag (start here, more a guide to packs and packing than a review site)
Bag Collector
Carryology (gorgeous site and layout with great content)
PackConfig
LoadedPocketz

Watches

A Blog to Watch

You Tube Reviewers:

Nutnfancy
CutleryLover
EdgeObserver
SnareMan
DarkChild57
Oromoto
Jim Skelton's Knife Channel
Selfbuilt 
BikingShaun
Tonester
SticktoDrum
555 Gear

Forums:

EDCF
CandlePowerForum
BladeForums
Multitool.org
Fountain Pen Network

Podcasts:
 
Gear Geeks Live
Knife Journal Podcast
Knife Thursday
Utility Talk
The Pen Addict
 
Other EDC Blogs:

Every Day Carry
EDC Blog