Github Zeitgeist
Github Zeitgeist http://github-zeitgeist.andresiglesias.net / August 2014
Github Zeitgeist is a Rails Web Application to show how different events changed what people coded in a certain period of time. It uses Github Archive (http://www.githubarchive.org/) and Google BigQuery (https://developers.google.com/bigquery/) to get the statistics.
The code can be found here.