http://marclis2600.blogspot.com/2010/09/week-3-reading-notes.html?showComment=1284668212374#c3607992100510460791
http://emilydavislisblog.blogspot.com/2010/09/week-3-computer-software.html?showComment=1284668656264#c116431511752894748
http://lis2600apope.blogspot.com/2010/09/reading-notes-3.html?showComment=1284933480731#c4151753822246403935
