All that stuff is B.S. if you ask me. Us men feel inadequate because we are looking at porn. But if you have really looked at many porn sites, you would realize that many use the same men over and over again. And sites, like massivacocks.com have been sited for using Photoshopped images (yeah, there happen to be about a 1000 20" men in the world and they're all on that site).

If you want to feel better, go look at some amature sites. Only 1 in 10 men are "big" (larger than 7"). And even then, on those amature site, men are larger than average because not too many men will post pics of themselves. I won't and I have a pretty large penis.

P.S. Camera angles, distance, and lighting can all effect those pictures too.