I've been enjoying going through the "Google Books" magazine section for great old OTR articles, so I thought I would start posting some. Please add any you find.
This first one is a "Life" article about the great comedians of 1942. It has some great pictures, especially the first big one of Fred Allen, and JAck Benny is considered an old timer even in '42!
http://books.google.com/books?id=2FYEAAAAMBAJ&pg=PA73&dq=fred+allen&hl=en&ei=10W3TLSgJIugsQPrv73xCA&sa=X&oi=book_result&ct=result&resnum=17&ved=0CGwQ6AEwEA#v=onepage&q=fred%20allen&f=false
Here is a neat one about World War II and it's effect on Radio, again with great pictures, including Fred Allen and the Benny cast!
http://books.google.com/books?id=G1EEAAAAMBAJ&pg=PA69&dq=fred+allen&hl=en&ei=10W3TLSgJIugsQPrv73xCA&sa=X&oi=book_result&ct=result&resnum=18&ved=0CHAQ6AEwEQ#v=onepage&q=fred%20allen&f=false