The Crotchety Old Fan has posted the second installment of his Electro Pulp Video Magazine. This time he goes into the origins of the pulp magazines and the way they have varied in size over the years.
I have to say I'm not as crotchety as he is and don't mind the current digest size mags. Maybe I just don't know any better.
On a related note, the Golden Age Comic Book Stories blog recently featured some hq scans of Frank R. Paul's covers for Wonder Stories Quarterly. They even posted cover scans of some 1950's sf digests, but don't tell COF.