Sustaining: tower blocks
sustainable refurbishment tower blocks, built environment, infrastructure, sustainability.
http://www.sustainingtowers.org

Chinese and Korean Net Blocks
Listings of Chinese and Korean IP address ranges in various formats for assisting spam blocking.
http://www.okean.com/asianspamblocks.html

Western Block Co.
Concrete blocks supplied in many shapes and colors. Also a supplier of glass blocks. Company profile, catalog and gallery.
http://www.westernblock.com/

Combi-Blocks, Inc.
Supplier of boronic acids, carboxylic acids, imidazoles, thiazoles, azoles, indoles, oxindoles, pyridines, heterocycles, bormides, fluoro compounds, amines, aldehydes, isoquinolines, nitro compounds, trifluoroborates, and other organics and fine chemicals.
http://www.combi-blocks.com/index.htm

Huayam Textile Machinery (HK) Co.
Manufacturer and exporter for knitting elements for Karl Mayer and Liba machines. Guide blocks, sinker block and tongue blocks.
http://huayam.diytrade.com/

Abrapower
Manufacturers of a wide range of high quality foam coated abrasive sponges including sanding blocks, sanding pads and nail buffing blocks which are available in a range of sizes grades and grain types.
http://www.abrapower.co.uk/

Surfwall Home
Filtering tool which automatically blocks all adult websites listed on central server, and manually allows / blocks specified websites
http://www.omniquad.com/surfwallhome.htm

Dutchroll Blockset for Simulink
[free] Provides several useful general-purpose Simulink blocks, such as signal generators, gains, switches, and rotation blocks.
http://home.wanadoo.nl/dutchroll/dubsi/dubsi.htm

Visual Quilting
Software for designing quilt blocks and arranging them in quilt patterns. Range of color palettes provided as well as example blocks and quilts.
http://www.visualquilting.com/

Pavatile
The Western Cape's largest and most dependable manufacturer of cobblestone and block paving also manufactures a comprehensive portfolio of coping, garden slabs and specialised kerbstones. The Web site contains a products database and is regularly updated with project bulletins and exclusive interviews with architects, engineers and landscaping professionals.
http://www.pavatile.co.za