automatic keyword generation/tagging
A lot of the hype in the web2.0 world is around the concpt of tagging. Tags are attached to objects by human beings, but there are thoughts whether this can be done automatically. One of the first services that offer free public auto tagging is the topicalizer. It auto-generates keywords for any URL along with a load of other statistics (e. g. readibility etc). It didn't work very wellfor the German sites I entered, but it as a nice API. I would really like to do a study determining the similarity of automatically generated tags and user-generated tags (i.e. with delicious tag clouds or skillMap-tags).