
There are some fun new features over at the Cover Browser (previously), under the moniker of Cover Browser Labs. Shown here is an example of a pattern-matching algorithm that finds comic book covers based on how close they match a given pattern of shapes and colours.
More fun, however, is the Cover Tagger Game that harnesses the communal tagging power of users to build a database of descriptive tags for each cover in the collection, but presents the whole ordeal as a guessing game.