Pro-Football-Reference.com: The most comprehensive compilation of pro-football statistics that I have ever seen. You can find any stat you want for any Redskin you want.
Football Card Collecting Resources
VintageCardPrices.com: This is a subscription site and it allows you to view the auction history for any vintage sports card by grade. This site has saved me many hundreds of dollars.
Vintage Football Card Gallery:An incredible free site. It is a database of every vintage football card including images. You can search it any way you want to. I cannot imagine how hard it was to put this together.
Redskins Football Card Checklist
Redskins Card Museum Checklist: This is an Excel spreadsheet that holds my master checklist. From 1933-1972 it is fairly complete. From 1972-2008 it focuses on the Topps cards in my collection plus autograph and Jersey cards. I feel like I have spent more time working on this checklist than doing anything else. I hope you find it to be a valuable resource. This will be updated several times each year.