Double-double precision
Fortran 90 code by Claire Moreau-Finot for double-double precision arithmetic. That is about a hundred bits of precision with a floating point notation. The library computes the exponential function radix 2 and e, the cosine and the sine.
http://perso.ens-lyon.fr/marc.daumas/SoftArith/ddouble.php?langue=en

Astronomical League Double Star Club
The purpose of the Double Star Club is to introduce observers to 100 of the finest double and multiple stars in the heavens.
http://www.astroleague.org/al/obsclubs/dblstar/dblstar1.html

High-Precision Software Directory
David Bailey's package for multiple precision, and packages for double-double (~32 dec. digits) and quad-double (~64 dec. digits) precision. The last two are in C++ with Fortran front ends.
http://crd.lbl.gov/~dhbailey/mpdist/mpdist.html

Zibo Linzi Fengtian Chemical Co., Ltd.
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http://www.fengtianchem.com

Westlake Engineering
Manufacture of Target Pistols. Modification of target pistols
http://westlakeengineering.com

Natex UK Limited
manufacture of thaumatin
http://www.natexuk.com/

XP Product Key Modifier
Application written to automate the task of changing the product key in Windows XP.
http://ryan.ript.net/xppid/

Double Press Manufacturing, Inc.
Manufacturer of farm equipment designed to double compress two tie and three tie bales to less than half their original size.
http://www.doublepress.net/

Double Decker Tours
Double Decker Bus Tours
http://www.doubledeckertours.com

Double Glazing UK
doubleglazing and replacementwindows suppliers UK. View our directory for the best links, tips and expert advice. Free brochures and quote service.
http://www.double-glazing-uk.co.uk