I didn't read anything technical today but surely learnt something really interesting - Learning to teach!
Web is open unlike many other platforms. The code we write for the web isn't compiled into binaries but is served as plain text files. If you look at any HTML , CSS or JS file, it is a text file which any human can read and thus learn from it. Bartosz (creator of impressJS) explains it better in his talk at Front Trends 2012.
Learning to teach - Bartosz Szopka from Front-Trends on Vimeo.