Links:

The Main List

Kitchen Products

Sources:
Manufacturers and Suppliers

Kitchen Counters

Wood Counters:

John Boos & Co.

Hartwood Lumber Co.

Michigan Maple Block
Solid hard-maple butcher block counter tops.

Totally Bamboo - Supplier of bamboo counters, backsplashes and more.

Concrete Counters

ConcreteNetwork.com 

Cheng Concrete Exchange

Tile Counters

InfoTile
List of tile manufacturers and distributors

Tile Council of America

National Tile Contractors Association

Solid Surface Manufacturers

Avonite

Corian

Gibraltar
By Wilsonart

LG Hi-Macs

Pionite

Surell
By Formica

Staron
By Samsung

Swanstone

Plastic Laminate:

Formica

Wilsonart

Pionite

Stainless Steel

John Boos & Co.

The Stainless Steel Kitchen

Stone Counters

Avanza Natural Quartz

Cambria
Quality Quartz Surfaces

DIY Granite
Purchase, install and maintain granite counters... do it yourself.

Green Mountain Soapstone

RMG Stone Products
Vermont marble, granite, slate, sandstone, soapstone and more.

Sheldon Slate Products
Slate counters and more.

Soapstones.com - Soapstone counter supplier.

Vermont Soapstone - Since 1856

Composite Counter Materials
(a.k.a. Engineered Stone)

Silestone
Quartz-Composite

Dupont Zodiaq
Quartz-Composite

Other Counter Materials:

Pyrolave
Kiln-Fired Lava

American Fiber Cement Corp
Fiber-Cement