Here are the image adresses that i used and sites for information

https://www.google.ca/search?q=keyboard&hl=en&source=lnms&tbm=isch&sa=X&ei=PMhZUaeTHsb4yAGPkYHQCg&ved=0CAcQ_AUoAQ&biw=1334&bih=664#imgrc=r733y-MdlR0vdM%3A%3BpRJIS45IrkPMUM%3Bhttp%253A%252F%252F2-ps.googleusercontent.com%252Fh%252Fwww.daskeyboard.com%252Fimages%252Fproducts%252Fmac%252F920x391xdas-keyboard-mac.jpg.pagespeed.ic.UrBJzM0382.jpg%3Bhttp%253A%252F%252Fwww.daskeyboard.com%252F%3B920%3B385

http://www.google.ca/imgres?imgurl=http://www.microsoft.com/hardware/_base_v1/products/natural-ergonomic-keyboard-4000/mk_nek4000_large.jpg&imgrefurl=http://www.microsoft.com/hardware/en-us/p/natural-ergonomic-keyboard-4000&h=310&w=540&sz=27&tbnid=oUr2loA8gWRXhM:&tbnh=90&tbnw=157&zoom=1&usg=__elQuoHGep51Q235E_7JP8PHpAf8=&docid=HSkTONyxLkr96M&hl=en&sa=X&ei=_shZUbbaMbKtygHY8YDwBA&sqi=2&ved=0CC8Q9QEwAA&dur=661



https://www.google.ca/search?q=ergonomic+pens&hl=en&source=lnms&tbm=isch&sa=X&ei=ZMlZUcq6NLKtygHY8YDwBA&ved=0CAoQ_AUoAQ&biw=1334&bih=664#hl=en&tbm=isch&sa=1&q=ergonomic+pen&oq=ergonomic+pen&gs_l=img.3..0l3j0i24l7.26612.26612.0.27071.1.1.0.0.0.0.70.70.1.1.0...0.0...1c.1.7.img.tn3MHMnOMqg&bav=on.2,or.r_qf.&bvm=bv.44442042,d.aWc&fp=3d4cac3f11f3d0a7&biw=1334&bih=664&imgrc=eo9gQtu6WhOaZM%3A%3BYB7FEnPVyGUfvM%3Bhttp%253A%252F%252Fwww.writeonandmore.com%252Fv%252Fvspfiles%252Fphotos%252FYP025YoroPen-2T.jpg%3Bhttp%253A%252F%252Fwww.stylehive.com%252Fbrowse%252Fwriteonandmore.com%252Fpen%3B300%3B300



https://www.google.ca/search?q=ergonomic+pens&hl=en&source=lnms&tbm=isch&sa=X&ei=ZMlZUcq6NLKtygHY8YDwBA&ved=0CAoQ_AUoAQ&biw=1334&bih=664#hl=en&tbm=isch&sa=1&q=+pens&oq=+pens&gs_l=img.3..0l10.1270.2080.3.2595.2.2.0.0.0.0.72.143.2.2.0...0.0...1c.1.7.img.KsJP3GnIKlo&bav=on.2,or.r_qf.&bvm=bv.44442042,d.aWc&fp=3d4cac3f11f3d0a7&biw=1334&bih=664&imgrc=kb50sXFwXsLLvM%3A%3BBBmY3qlFUyhnqM%3Bhttp%253A%252F%252Fs7d5.scene7.com%252Fis%252Fimage%252FStaples%252Fs0146884_sc7%253F%2524splssku%2524%3Bhttp%253A%252F%252Fwww.staples.com%252FStaples-OptiFlow-Rollerball-Pens-Fine-Point-Black-Dozen%252Fproduct_486573%3B380%3B380



https://www.google.ca/search?q=ergonomic+chair+vs+normal+chair&hl=en&source=lnms&tbm=isch&sa=X&ei=cs5ZUa37GJLqqAGXkoHYDQ&ved=0CAcQ_AUoAQ&biw=1334&bih=664#imgrc=FmSQawgJefL29M%3A%3BDKcCxJlqSVzfVM%3Bhttp%253A%252F%252Fwww.btoffice.co.uk%252Fblog%252Fwp-content%252Fuploads%252F2012%252F04%252Fergonomic-office-chair-vs-executive-leather-chair.jpg%3Bhttp%253A%252F%252Fwww.btoffice.co.uk%252Fblog%252Fergonomic-office-chair-vs-executive-leather-chair%252F%3B600%3B360


http://www.google.ca/imgres?imgurl=http://www.micwil.com/images/gallery/keyovation_goldtouch_ergonomic_mouse_p2_900x800.jpg&imgrefurl=http://www.ergocanada.com/detailed_specification_pages/keyovation_goldtouch_ergonomic_mouse.html&h=800&w=900&sz=202&tbnid=Ph0DceampwV9zM:&tbnh=73&tbnw=82&zoom=1&usg=__0tgQafNmCS8DiEE7hH0hyzupsoA=&docid=BZUBDjAHayVeuM&sa=X&ei=vOBZUeuWH5H22QWMroDYAQ&ved=0CEkQ9QEwAQ&dur=2682


Websites
http://actrav.itcilo.org/actrav-english/telearn/osh/ergo/ergonomi.htm#B. Sitting and chair design

http://en.wikipedia.org/wiki/Ergonomic_keyboard

http://ergonomics.about.com/od/ergonomicbasics/a/ergo101.htm


http://www.safetyoffice.uwaterloo.ca/hse/ergonomics/ergo_index.htm

Science textbook