The news of his death was broken on http://www.velonews.com.
"Burke earned a doctorate in exercise physiology from Ohio State in 1979 and quickly joined the staff of the United States Cycling Federation, serving as an Olympic team staff member in 1980 and 1984. Burke built a strong reputation for making cutting-edge research in his field accessible to a general audience and wrote extensively for cycling publications, including Winning, Bicycling and VeloNews," said velonews.com.
He also wrote a column in the US edition of UK magazine CycleSport and it was a copy of this that he's signing above.
Carlton and Al Reid of Bikebiz.co.uk monopolised Burke at the Interbike CycleSport party held in Phil Liggett's suite at the Bellagio hotel in Las Vegas, and it comes as a great shock to hear of his untimely death.
He turned a lot of people on to cycling, and made existing cyclists fitter, stronger and faster.
Bryan Holley of Carmichael Training Systems told velonews.com:
"Ed Burke was the key element in getting my off my butt and on my bike and making it my life. His knowledge of the sport and ability to explain very complex subjects in a way that even I could understand made me realize not only what I needed to do but how to do it and why. His book 'Serious Cycling' was my first introduction to him and his style. Just a few weeks ago at InterBike, he appeared vibrant and very well. I was shocked and saddened to see the news today. In an ironic way, and I've said this myself, when I have "to go", I want to go "on my bike". He left us physically doing what he loved to do. His cycling spirits lives on."