From the resource:
In the mapping workshops that we offer, a recurrent question refers to where to get the data. Every time students attend one of these workshops, all the datasets are given to them, so it is understandable that many might wonder where the instructors get this information from. This is what inspired us to develop a new workshop this semester, Finding Data for Mapping: Tips and Tricks. But since not everyone could be present for the workshop on October 3, I’m taking the opportunity now to share a few of the tips and tricks we discussed to find data to make maps for your academic or pedagogic work. In a way, this will be a “prequel” (since they’re so popular nowadays) and a complement to the Intro to Mapping using QGIS post of a few years back.