I have consulted many websites and books on the subject of handedness in the preparation of this website, some to a greater extent than others, and some with more confidence than others in their accuracy and objectivity. Among that list are the following.

I have not included websites that require logins or memberships. Neither have I included websites devoted to “25 Amazing Facts About Left-Handed People”, “10 Proven Benefits of Being Left-Handed”, etc (although I will admit to reading some of them, just out of interest). I have, however, in a spirit of inclusiveness, included some Left-Handedness Advocacy/Help web-sites.

• Right Hand, Left Hand by Chris McManus (Weidenfeld & Nicholson, 2002)
• The Left Stuff by Melissa Roth (M. Evans & Co, 2005)
• A Left-Hand Turn Around The World by David Wolman (Da Capo Press, 2005)
• The Puzzle of Left-Handedness by Rik Smits (Rekreation Books, 2010)

• Handedness (Wikipedia, plus links from there) - http://en.wikipedia.org/wiki/Handedness
• Handedness (Encyclopedia.com - multiple sources) - http://www.encyclopedia.com/topic/handedness.aspx

• The Origins of Handedness (Science Magazine) - http://blogs.sciencemag.org/origins/2009/08/the-origins-of-handedness.html
• Molecular Approaches to Brain Asymmetry and Handedness (Nature Reviews Neuroscience) - http://www.nature.com/nrn/journal/v7/n8/full/nrn1930.html
• ‘Right Brain’ or ‘Left Brain’: Myth or Reality? (New Scientist) - http://www.rense.com/general2/rb.htm
• Is Left-Handedness a Disadvantage for Musicians? (Psychology Today) - http://www.psychologytoday.com/blog/why-music-moves-us/201112/is-left-handedness-disadvantage-musicians
• The Fighting Hypothesis (Science Creative Quarterly) - http://www.scq.ubc.ca/the-fighting-hypothesis-stability-of-polymorphism-in-human-handedness/
• Left Hand, Left Brain: The Plot Thickens (DANA Foundation) - http://www.dana.org/news/cerebrum/detail.aspx?id=656
• The Left Brain Knows What the Right Hand Is Doing (Monitor on Psychology) - http://www.apa.org/monitor/2009/01/brain.aspx
• Handedness Develops in the Womb (New Scientist) - http://www.newscientist.com/article/dn6186-handedness-develops-in-the-womb.html
• Research Suggest Link Between Handedness and Dyslexia (Business Week) - http://www.businessweek.com/lifestyle/content/healthday/645473.html
• Handedness and Cerebral Dominance: The Right Shift Theory (Journal of Neuropsychology) - http://neuro.psychiatryonline.org/article.aspx?articleid=99964
• Left-Handedness - Does It Mean Anything? (Psychologist World) - http://www.psychologistworld.com/influence_personality/handedness.php
• Retraining the King's Left Hand (The Lancet) - http://www.thelancet.com/journals/lancet/article/PIIS0140-6736(11)60854-4/fulltext

• The Health Risks of Being Left-Handed (Wall Street Journal) - http://online.wsj.com/article/SB10001424052970204083204577080562692452538.html
• On the Left Hand, There Are No Easy Answers (NY Times) - http://www.nytimes.com/2011/03/08/health/views/08klass.html
• On Left-Handedness, It’s Causes and Costs (NY Times) - http://partners.nytimes.com/library/national/science/health/051600hth-genetics-lefthanded.html
• Left-Handed Children 'Do Badly at School' (The Independent) - http://www.independent.co.uk/news/education/education-news/lefthanded-children-do-badly-at-school-1047093.html
• Left-Handers More ‘Creative But Forgetful’ (The Independent) - http://www.independent.co.uk/life-style/health-and-families/health-news/lefthanders-more-creative-but-forgetful-710626.html
• Why Left-Handed People Aren’t More Creative (Mail Online) - http://www.dailymail.co.uk/sciencetech/article-2000973/Why-left-handed-people-ARENT-creative-right-handed.html

• Gene for Left-Handedness Is Found (BBC) - http://news.bbc.co.uk/2/hi/health/6923577.stm
• The Left-Handed Advantage (ABC) - http://abcnews.go.com/Technology/story?id=498707
• The Sinister Hand (Australian Broadcasting Corporation) - http://www.abc.net.au/quantum/scripts98/9807/feature.htm
• Why Are So Many U.S. Presidents Southpaws? (CBC) - http://www.cbc.ca/news/background/science/left-handed-presidents.html
• Left Brain Talks To The Right Hand, Study Finds (NPR) - http://www.npr.org/blogs/health/2010/10/21/130719927/gestures-involved-in-early-language

• Why Are Some People Left-Handed? An Evolutionary Perspective - http://www.evolutionhumaine.fr/violaine/publis/pdf/Llaurens_2009_phylo_trans_lond_b.pdf
• Handedness and Earnings - http://www.nber.org/papers/w12387.pdf
• Creation of the Sinister: Biological Contributions to Left-Handedness - http://www.hcs.harvard.edu/~hsmbb/BRAIN/vol2/left.html
• Handedness and Hemispheric Language Dominance in Healthy Humans - http://brain.oxfordjournals.org/content/123/12/2512.full
• Left-Handedness: Facts and Fiction - http://cardinalscholar.bsu.edu/bitstream/handle/193217/1/W93_1992WyantChristineA.pdf
• Left-Handedness and Male-Male Competition - http://www.epjournal.net/wp-content/uploads/EP09354370.pdf
• Lateralization of Language Functions in the Human Brain - http://course.sol.lu.se/FON218/Postrar_neurolingvistik_VT07/Frida_Maartensson.pdf

• Left-Handers’ Day - http://www.lefthandersday.com/
• Anything Left-Handed - http://www.anythingleft-handed.co.uk/
• PlanetLeftHanded - http://www.planetlefthanded.com/
• The Left Handed Liberation Society - http://www.lefthander.com/
• On the Other Hand - http://www.ontheotherhand.ie/
• Leftys - http://www.leftys.com.au/
• Lefties, Lefty Tool & Gadgets - http://www.lefties.biz/

• Are Left-Handed People More Likely To Be Artists? - http://www.squidoo.com/left-handed-artists
• What Does Handedness Have To Do With Brain Lateralization? - http://www.indiana.edu/~primate/brain.html
• Left Handedness (h2g2) - http://h2g2.com/dna/h2g2/classic/A625501
• Gauche! Left-Handers In Society - http://www.indiana.edu/~primate/lspeak.html
• Handedness Research Institute (still under construction) - http://handedness.org/
• Left-handedness: Nature or Nurture, Blessing or Curse? - http://molly.kalafut.org/lefthanded/lefthanded.html
• Primary and Secondary Consequences of Converting Handedness - http://www.linkshaender-beratung.de/english/Problem.htm
• Scientific Perspective on Lefties - http://www.eyedrd.org/2011/12/scientific-perspective-on-lefties.html
• Life’s Extremes: Left- vs. Right-Handed - http://www.livescience.com/17009-left-handedness-ambidexterity.html
• Ancient Lefties: The History of Obama’s Left-Handedness - http://www.livescience.com/5274-ancient-lefties-history-obamas-handedness.html
• How Does Handedness Develop? - http://www.ot-mom-learning-activities.com/handedness.html
• Left-Handed Wiki - http://lefthand.wikia.com/wiki/Left-handedness