My presentation on domain fronting (the meek pluggable transport in Tor), which I gave at PETS 2015 on June 30, 2015, is online. This page has the video and a copy of the slides. It is about 17 minutes long. https://www.bamsoftware.com/talks/fronting-pets2015/ Here is the paper on which the talk is based, by Chang Lan, Rod Hynes, Percy Wegmann, Vern Paxson, and me: https://www.bamsoftware.com/papers/fronting/