Block Exchange is a website where Scratch users can share data sets and data sources in the form of Scratch programming blocks. For example, a soccer enthusiast can share a block that retrieves data about the number of goals scored by different players in the English Premier League. Other blocks in the Exchange can retrieve information from web-based dynamic data sources. For example, a Scratch user can share a block that dynamically retrieves meta-data on the books that are currently on the New York Times bestsellers list. With Block Exchange, you can create a large variety of projects, ranging from interactive data visualizations to stories and animations which incorporate information from the real world dynamically and in real-time.