H.I. No. 4: Feedback on Feedback: Difference between revisions

[http://www.youtube.com/user/minutephysics Henry of MinutePhysics]

[http://reddit.com/r/cgpgrey CGP Grey subreddit]

[http://www.hellointernet.fm/podcast/2 Episode #2: Copyright Not Intended]

[http://periodicvideos.blogspot.co.uk/2012/02/brown-paper-question.html Brown Paper Discussed]

[http://www.amazon.com/gp/product/1864366052/ref=as_li_ss_tl?ie=UTF8&camp=1789&creative=390957&creativeASIN=1864366052&linkCode=as2&tag=hiintfm-20 Brady's Dad's book: Trackers]

[http://www.youtube.com/watch?v=9wX-l8GFBq8 World's Greatest Autograph Book]

[http://royalsociety.org/ The Royal Society]

[http://royalsociety.org/library/visitors/ Visiting the Royal Society library]

[http://5by5.tv/hypercritical Hypercritical]

[http://www.youtube.com/user/1veritasium Derek of Veritasium]

[http://www.deathbulge.com/#/comics/155 Deathbulge Comic 155]

[http://www.zefrank.com/theshow/ The Show with ZeFrank]

[http://www.youtube.com/watch?v=N5fXtThdR8I ZeFrank on comments]