Most-mentioned links in Hacker News comments, 2006–2015
If you're like me, and immediately clicked on all the XKCD links:#3. http://xkcd.com/927/#11. http://xkcd.com/386/#12. http://xkcd.com/538/#46. http://xkcd.com/936/#60. http://xkcd.com/327/#64. http://xkcd.com/605/#69. http://xkcd.com/378/#78. http://xkcd.com/810/#91. http://xkcd.com/1053/