Note: This is an updated version of an old algo, simulated over more recent market data.
PsychSignal's StockTwits Trader Mood analyzes trader's messages posted on StockTwits, and provides a measure of bull/bear intensity for securities based on aggregated message sentiment. This dataset includes factors such as number of bullish and bearish messages, bull-to-bear intensity and bull-to-bear message ratio.
Both versions of this algo were inspired by Seong Lee's Social Media Trader Mood Series. Enjoy!