My son, aged 13, was given this question for his homework recently. As someone (me!) having worked on the web professionally since 1999, I felt a connection to this particular bit of homework. Obviously we clashed (homework sucks, both for kids, parents and teachers) - but I thought it would be a good exercise for me to try to answer. I will add that I don't consider myself the authority on this answer, but I have been attending design, user experience and developer conferences for over 15 ye...
