Earthquake Resistant Building Construction
Explains about using reinforced hollow concrete block masonry to protect a building from this disaster. Includes a FAQ's page and photos of this technique.
http://www.geocities.com/gurubhag/home.htm

Hollow Planets
Public Netbase Media~Space! Website
http://www.t0.or.at/subrise/hollowgd.htm

Digi-Block, LLC
The path to number sense begins with a little green block! Come See the Math!
http://www.digi-block.com/

Omni Block
Insulated concrete block, technical and installation guides, gallery and distributors list.
http://www.omniblock.com

Cedar Hollow Alpacas
Cedar Hollow Farm Alpacas offers Alpacs for sale from champion herdsires as well as a range of client services. Breedings, boarding and more.
http://cedarhollowalpacas.com

Blockalert
A window into spam activity based on IP block hierarchy.
http://www.blockalert.com/

Defco
Manufacturers of the Blockmaker mobile block-making machine. Includes cost comparison with standard block construction and adobe building codes.
http://www.defcoinc.com/

Concrete Block Association (CBA)
The Concrete Block Association. Provides information on Aggregate Blocks, Concrete Blocks, Part E, Part L, Part J and Building Regulations
http://www.cba-blocks.org.uk/

Earthuprising Adobe Block & Machine Co.
Manufacturer of portable, diesel powered adobe block machines. Site in English and Spanish.
http://www.earthuprising.com/

Seves Glassblock
International manufacturers of glass blocks in various designs, colors and finishes for interior and exterior walls, windows, floors and showers, commercial and residential. Glass bricks.
http://www.sevesglassblock.com