PQ Corporation
Global producer of silica-based inorganic chemicals that includes sodium silicate, potassium silicate, silica gel, hollow microsphere, zeolite, molecular sieve, catalyst, and fine glass sphere.
http://www.pqcorp.com/

Dense Sphere Packings from New Codes
A table with the largest densities of sphere packings known to us in dimensions up to 200.
http://www.mathi.uni-heidelberg.de/~yves/Papers/Sphere.html

The Optiverse and Other Sphere Eversions
Article by John M. Sullivan on sphere eversions, with numerous illustrations.
http://www.math.uiuc.edu/~jms/Papers/isama/

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

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

Deansteel Hollow Metal Doors and Frames
Makers of steel hollow metal doors, steel doors and steel door frames, steel marine doors and marine furniture, steel bullet proof doors, steel bullet resistant doors, steel fire resistant doors and steel blast resistant doors, plus mini warehouse and self storage doors and frames. Deansteel also makes commercial hollow metal steel doors and steel metal door frames for all commercial applications, conforming to the standards of the Steel Door Institute. Deansteel’s commitment to quality, customer service, and small business-style relationships has moved this family owned business forward for over half a century.
http://www.deansteel.com/

Friends Electricals
Friends Electricals,is a FRIENDS GROUP Comany engaged in the export of AC Electric Motor,DC Electric Motor,Helical Geared Motor, Worm Geared Motor,Squirrel Cage Motor,Flange Mounted Motors,Hollow Shaft Motors,Hollow Type Worm Geared Motors,Brake Motors,Jet Centrifugal Pump Combination,Mono Block Pump Set, Centrifugal Pump,Self Priming Pump, Generator Sets, Worm Reduction Gear Box,Motorised High Pressure Blowers & Electrical Control Panels at most affordable rates and high standard of quality
http://www.friendselectric.netfirms.com

Dyson Sphere
A list of frequently asked questions with answers.
http://www.nada.kth.se/~asa/dysonFAQ.html

Atma-Sphere
Manufacturer of triode, class A, balanced OTL amplifiers and preamplifiers.
http://www.atma-sphere.com/

Audio Sphere
Audio Sphere provides CD duplication, DVD duplication, CD replication, DVD replication, CD manufacturing, DVD manufacturing, CD business cards, bulk CDs. CD packaging, make cds, DVD packaging
http://www.audiosphere.com/