Foosball Organizations:
USA:

Valley International Foosball Association (Tornado Manufacturer)

Bonzini USA

Independent Foosball Promotions

Asheville Foosball

Richmond Foosball

Louisiana Foosball

Other North American Foosball Organizations:

Canada

Mexico

International Foosball Organizations:

ITSF

Foosball Ratings/Rankings:

USTSA (alternate database) [How calculated]

Bonzini USA [How Calculated]

IFP

ITSF [and How Calculated]

Tournament Results:

USA

Charts Database

Discussion Boards:

Foosball.com's Board

FoosballBoard (USA)

Foosworld Forum (USA)

International

Major USA Foosball Websites:

Foosball.Com

Foosworld

Foosline

Foosball Heaven

Netfoos.com

Miscellaneous:

World Table Soccer Almanac