At some point in the past I was wondering how hard it would be to do sentiment analysis based on Glassdoor reviews of public companies to try and trade on the results.

I could swear when I dug into this I found that they had actually licensed out their dataset to a couple of hedge funds already that were doing exactly that (and paying for the privilege).

I can’t find this anymore, so maybe I am imagining things? At any rate this FT article implies there were people out there likely doing this though unclear if they paid Glassdoor for the privilege: https://www.ft.com/content/d86ad460-8802-11e7-bf50-e1c239b45...