First, as a disclaimer, I am not on the pointy end of the demographic. Being such, I also hold the view, those who are not on the pointy end of the demographic (meaning those people who put food on the table from racing a bike and therefor maybe 1000 people on this earth), are ridiculous when wringing their hands about the latest tech. I would also define those not on the pointy end of the demographic and know more than "air goes in the tires" and "oil goes on the chain" are Freds. I am perhaps the Fredliest of all Freds in that I enjoy not only the latest tech of today, I am also fascinated by the tech of yesteryear.
That said, an article that will wring the Fredliest of hands, are wider tires faster?
http://velonews.competitor.com/where-th ... tires-fast
Personally, I have been riding a minimum of 25mm tires for the last 8 years. They were difficult to find back then (I ride tubulars). Now they are everywhere and a bit cheaper. Makes me happy. Also, I ride them for comfort as I don't put food on the table when I ride. But now I have to make new excuses for being old fat and slow.