Something the whole Web 2.0 revolution introduced was the ability for websites to include user-reviews right along side product/company information. Yelp.com is my favorite example, listing a restaurant's address and details, and reviews from diners about their experience. This, perhaps more than most things, changed the nature of how people use the internet (and how companies on the internet use people).
So anyway, this past weekend was one of my library's drop-off days for our annual Friends of the Library book sale. While going through some of the donations on Saturday, I found the movies below - the previous owner added their own review right to the cover.
I don't know if this was for personal use, or staff reviews from a video store, or someone writing reviews for a family member to read, but I love the idea. It's the same as posting reviews on Amazon, Yelp, or in the library catalog, but just in the physical world.
Every once in awhile I'll request a book from another library, or buy an old library book at a used book sale, and stuck inside the front cover will be a review from a newspaper or magazine. I would love it if my library could do this, but the volume of new items just makes this practice unsustainable. Not only would it be helpful for patrons, it would also remind me why I bought the book in the first place.
Of course, since I do most of my selection via RSS feeds, instead of by reading physical journals, I guess it wouldn't work anyway. Sigh.