University of Michigan researchers can access a compilation of tweets known as the “Twitter Decahose”, a 10% sample of all tweets, without charge. MIDAS, CSCAR and ARC-TS together manage and support the use of this data repository, including the historical archive of Decahose tweets and ongoing collection. Go here to request access. This guide describes how to access and use the Twitter data on the University of Michigan’s Cavium ThunderX Cluster. Data availability in the Twitter Decahose can be queried here.