Lots of interesting bits about Nebraska. Ghost town list, and more.
This one looked good for many different kinds of research.
Just briefly perused this one, but it looked like it would have a lot of interesting info in it...
Link to a listing of Nebraska ghost towns... proved pretty useful; I limited myself to looking at only the bottom half of the state, though, to start.
This seemed like a really interesting website.
Reviews of the latest books and plenty of fascinating archived materials that cover the world of the unexplained from A to Z; recommended by Dennis