An algorithm that predicts Google weather

“MozCast is an experiment in tracking the "weather" patterns of the Google algorithm. While big updates like Panda and Penguin get a lot of press, Google revealed that they made 516 changes in 2010, and all evidence suggests that pace has continued. What we notice is barely the tip of the iceberg. MozCast was designed to help you keep track of the day-to-day changes in the Google algorithm.”