I've enjoyed The Museum of Online Museums for years -- it's full of amazing collections of odd things. I even linked to one of the collections back in 2007. Now a three-part documentary called "The Curators" visits three curators of these museums and tells their stories. They're great fun -- these are collections any of us (at least any of us with a lot of time on our hands) could create. Recommended for fans of: museums, found objects, weird web stuff, libraries, photographs, and documentaries.
Bill Keaggy - The Grocery List Collection
This is my favorite. Keaggy collects found grocery lists.
Brian Collier - Very Small Objects
Extremely precise and detailed, Collier has created a Collier Classification System for very small objects.
Jennifer Sharpe - The Kriegsmann Files
I wrote about this back in 2007; Jennifer Sharpe is an NPR contributor who found Hollywood photos while dumpster-diving. Sounds kinda familiar, right? Fellow blogger Ransom Riggs collects found photos too.
This one has an interesting bit (about halfway through) about how the collection was discovered, shedding light on a big mystery -- why were all these photos thrown away? Also check out the NPR story about the collection.
Check out The Museum of Online Museums for more -- post your favorites in the comments, or point us to museums that haven't made the list yet!