One of the things that the late Bill Weiss and I often discussed was the need to assist hobbyists make better informed buying decisions. While this has always been an important consideration, it has taken on even more consequence in the internet age.
Just before he passed, Bill was working on an article which compiled information on all the US altered, faked, and counterfeit stamps that had crossed his desk over the years. He was just finishing the article when his cancer interceded. I had been helping where I could and have now put finishing touches (formatting, spelling/grammar corrections, layout) on it. It is now published here
http://www.stampsmarter.com/Learnin...dStamps.htmlDon