I discover a page about Literary Landmarks at Friends of Libraries USA and got all excited because it presents me with another idea for a postcard collecting theme. But, the list is broken out into years, not as one complete list! How dumb is that!? The person who designed this page needs to get a lesson in web design. First rule... don't make me think (thank you Steve Krug).
Anyway, I plan to post more about the sites once I click through all the lists and compile them into my own complete list.