CSC561 readings

Hi all, your grade for readings is now updated.
Because some of you have the problem joining our Google+ community, I accept posts by 9/4 and late posts by 9/11 for readings on history. However, in general, you should post your comments according to the index here.
Also, I find some of you submitted your topic reactions to the reading section in the index sheet. Please be aware that there are 4 sections in the index sheet for basic info, readings, topic reactions and participation.
Good luck!