Interesting Metal Detecting Websites:

American Digger Magazine
Find's Treasure Forums
Friendly Metal Detecting Forum
Kellyco Metal Detectors
Marks Metal Detecting Website
Metal Detecting Hobby Talk
Metal Detecting In The USA
MetalDetector.Com
Minelab Owners Forums
Relic Hunter On-Line Magazine
Stout Standards - www.stoutstandards.wordpress.com
Treasure Depot
TreasureNet
Treasure Spot Forums
WWATS
YankeeBullets

ID, History and Collector Value of "Good For" Tokens:
Gary Kruesel

ID, History and Collecting Dog Licenses, tokens, lock and antique dog collars:
Diane Bandy - DogLicense.com

Coin Information:
Best Coin If you want to see what your coin finds are worth then check out Best Coin.Com. It has an updated price guide for all U.S. coins.
Coin Community Family  Read all about the history of the coins that you are digging up.  Great informative website that is a must visit!
Don's World Coin Gallery  Identify world coins.

Resource Links:
Defunct Amusement Parks  Great site for researching old amusement parks.
Drive-Ins.com  The definitive resource for drive-in information.
FMDAC