CONTRIBOOK is a free software tool that can be used for community building. It was started by Frank in 2013 to show more community activities on the ownCloud.org website. CONTRIBOOK can be used as a blog planet aggregator, can show Twitter messages Forum posts, github commits, profile pages of the contributors and a lot more. The first version of the code was developed several years earlier for the KDE.org homepage but was significantly enhanced for the CONTRIBOOK project. More details and the official announcement can be found in this blog post.