catalog listings not shared?

I went to my Google Documents dashboard just now and for some reason everything shows as "not shared" -- so I've gone through and re-set them to be available for view by anyone with the links. I will test the old ones to make sure they still work, but meanwhile here's what they give me for the links to publish now:

• new to catalog listings: http://docs.google.com/Doc?docid=0AWEibLysF4dKZGc0anB4YnRfOGRqcXc4NQ&hl=en
• hardcovers a - k: http://docs.google.com/Doc?docid=0AWEibLysF4dKZGc0anB4YnRfNGo0d3RzNg&hl=en
• hardcovers l - z: http://docs.google.com/Doc?docid=0AWEibLysF4dKZGc0anB4YnRfMTVmcnZ6azRkcg&hl=en
• misc. softcovers a - k: http://docs.google.com/Doc?docid=0AWEibLysF4dKZGc0anB4YnRfM2R2NGJnbg&hl=en
• misc. softcovers l - z: http://docs.google.com/Doc?docid=0AWEibLysF4dKZGc0anB4YnRfMTZwZDY1cXRkZA&hl=en
• pbs a - del rey: http://docs.google.com/Doc?docid=0AWEibLysF4dKZGc0anB4YnRfNmZ0Y3I5NA&hl=en
• pbs dell - z: http://docs.google.com/Doc?docid=0AWEibLysF4dKZGc0anB4YnRfN2M4OXFuNg&hl=en
• double paperbacks: http://docs.google.com/Doc?docid=0AWEibLysF4dKZGc0anB4YnRfMWZoc3JmOQ&hl=en
• drumm booklets: http://spreadsheets.google.com/ccc?key=py6NHxxVWmZ7rRqDTYLtLEQ

Later: I tested one of them and it still works. So who knows why they became unshared. Maybe something I accidentally clicked on...