Check out the spreadsheet below to see what people have available. The scroll bar at the bottom of the sheet's pane lets you see other information about what's available, and from where.
The sheet is sorted alphabetically by state and city for easy geographic reference.
If you want to look for something particular, you can use Ctrl-F (Cmd-F on Apple) to open a "Find" box on this web page and search to your heart's content.
You can also click the "pop out" button (floating at the upper-right of the sheet pane below) to view the spreadsheet, which will allow you to sort by any column. (Requires a Google sign-in on Firefox.)
Use the left pane icon to view specifics across three layers of the map:
Toggling the "More info" drop-down allows you to click on a specific title, school/library, or city - this brings you to that location on the map and reveals additional information!
Scroll in/out to expand/contract the map; or drag to recenter the map.