You can take a look at a list of the original 325 Shadow stories, and see which of them I have in my collection, as well as a few items I have for sale/trade; see which stories the professionals think are the best ( Will Murray, Robert Sampson, Frank Eisgruber, Jr., Robert Weinberg, and Frank Hamilton give their expert opinions); or have a look at the Shadow's years in radio (I have over 200 of these on tape, and I finally put my list of radio shows online).
Newsgroups that concern themselves with these sorts of characters and stories include:
There are also several WWW sites devoted to pulp information and/or pulp-related images:
The Shadow's Sanctum
Marc Sky works his magic and turns Shadow covers into posters.
These are the photocopies I own...
The Shadow by fellow collector Tim Hewitt
More of the Shadow from fellow collector Greg Swan
Ron Kinion's page on the Shadow movie
, with links to other pulp-related sites
The Doc Savage Webpage (a list of lists)
Scans of Doc Savage book covers
Old Time Radio - you may be able to find some Shadow radio programs here
Radio Showcase - over 9000 old time radio showsm but not one Shadow!
Adventures in Cassettes - a number of OTR tapes, but the only Shadow they carry are the current commercial tapes you can buy in any large bookstore
Original Old Time Radio (OTR) WWW Page
Radio Archive at the University of Memphis - no Shadow at all
Radio Archive Homepage