Week 4 Reading Comments

http://guybrariantim.blogspot.com/2010/09/week-4-readings.html?showComment=1285355597116#c2356949517226457073

http://magpie-maggiemagpie.blogspot.com/2010/09/week-4-readings-data-compression.html?showComment=1285354583362#c7359350212696768676