I am downloading data from Google Trends and merging it with historical S&P 500 index data looking for tradeable trends from April 2013 to April 2018. Correlation is promising (.58) and p-value was excellent at 4.5538 e-24 (VERY strong signal). I am working on creating a goal seeking algorithm that will yield specific signals to buy, sell or hold on a weekly basis (ergo sell on Friday, buy on Monday).
I have not provided html versions of the Jupyter Notebook here that I typically use. This is a work in progress AND … if it does work, then it is obviously something that one would be very reluctant to publish. If you want to talk to me about this, please contact me. I can certainly provide you more information. However, I may be a little circumspect:)