Slashdot | Wading Through Weblogs, One Idea at a Time
I didn't get to check this out until today, but it is pretty interesting. Little bit flaky, but as the author says, garbage in, garbage out, so maybe it's my fault. In any case, I looked for similar posts to this one, and got this in response. I don't see much context analysis, just some dead on word matching. Definitely interesting, though.