I don't think we can really say there is little going on in search when Google and Bing both have 100s if not 1000s of engineers working on it. That said I do a

I don't think we can really say there is little going on in search when Google and Bing both have 100s if not 1000s of engineers working on it. That said I do agree that I would expect a lot more ML and NLP tools to start showing up as part of search for helping to classify content (I am sure they do this internally just hasn't been user exposed). We built this demo because we thought there was no easy way to classify content sites (a problem we had been discussing with KDNuggets) and got inspired by some of the algos our community had added.