So, taking the advice of @gerggerg above, I asked myself this: what was the best bit of "epic shit" that someone created in 2011? For me, Khan Academy (http://

So, taking the advice of @gerggerg above, I asked myself this: what was the best bit of "epic shit" that someone created in 2011? For me, Khan Academy (http://www.khanacademy.org/ http://www.khanacademy.org/) was one of the most amazing, world-changing things that I saw across the entire technology industry in 2011. In particular, the stuff on Cosmology and Astronomy (http://www.khanacademy.org/#cosmology-and-astronomy http://www.khanacademy.org/#cosmology-and-astronomy) is just fantastic. What blew you away in 2011?