Reproductive Management of the Ewe Flock and the Ram
An article outlining reproductive management of ewes and rams.
http://ag.ansc.purdue.edu/sheep/articles/repromgt.html

Computing Aurifeuillian factors
Algorithm that finds non-trivial factors of certain numbers of the form a^b +/- 1.
http://web.comlab.ox.ac.uk/oucl/work/richard.brent/pub/pub127.html

Factors
Lists the factors of every single number up to 600, for quick reference and as a resource for students.
http://factorzone.tripod.com/factors.htm

Neurotrophic Factors
Information and links about nerve growth factors.
http://people.cryst.bbk.ac.uk/~ubcg09j/neurotrophins/nt_new.html

Bailey, R .A.
Queen Mary and Westfield College, London. Design of experiments, particularly those with one or more nuisance factors and in which the treatment factors are qualitative.
http://www.maths.qmul.ac.uk/~rab/

Factors of Numbers near Googolplex
Factors of numbers in the range 10^(10^100) to 10^(10^100)+999.
http://www.alpertron.com.ar/googol.htm

Repunit Primes and Factors
Factors of 10^n +- 1 for n<1000.
http://www.swox.com/gmp/repunit.html

Growth Factors
Basic and clinical research on the expression, structure, function and use of growth factors on cells, in animals, and in cancer treatment.
http://www.tandf.co.uk/journals/titles/08977194.html

Bad Human Factors Designs
A scrapbook of illustrated examples of things that are hard to use because they do not follow human factors principles.
http://www.baddesigns.com/

Human Factors Group
Human Factors Group of the Royal Aeronautical Society, HFG committee
http://www.raes-hfg.com/