There are a lot of good ones, but my favorite is still Erin McKean's talk about dictionaries: http://www.ted.com/talks/lang/eng/erin_mckean_redefines_the_dicti

There are a lot of good ones, but my favorite is still Erin McKean's talk about dictionaries: http://www.ted.com/talks/lang/eng/erin_mckean_redefines_the_dictionary.html http://www.ted.com/talks/lang/eng/erin_mckean_redefines_the_...