http://www.ivy-rose.co.uk/Chemistry/Organic/Naming-Alkanes.php
http://www.tutorvista.com/content/science/science-ii/carbon-compounds/saturated-unsaturated.php
http://www.ivy-rose.co.uk/Chemistry/Organic/Naming-Alkanes.php
http://www.elmhurst.edu/~chm/vchembook/503alkenes.html
http://www.avogadro.co.uk/organic/isomer.htm
http://www.chemguide.co.uk/organicprops/alkenes/polymerisation.html
http://www.chemguide.co.uk/organicprops/alkenes/hydrogenation.html
University of Manitoba
seck-tanbc/s4/organic chemistry/alkanes
seck-tanbc/s4/organic chemistry/alkenes