An interview with the creators of Marx Madness, which is exactly what it sounds like. Tommy Craggs, communist: "Walter Benjamin vs. C.L.R. James is a barnburner."

Occasional Deadspin/Regressing contributors Michael Lopez and Greg Matthews are currently in second place in Kaggle's bracket prediction contest. They're not just picking teams; scores are based on how closely each entry's modeled win probabilities match up to actual results. If they win they get $15,000. [Kaggle]