Ed Dolan teaches global macroeconomics, managerial economics, money and banking, and other courses in several European countries. His blog features short articles relating to economics teaching, including news, data, examples, and illustrations. Each post has a link to a free set of PowerPoint slides that can potentially be used in teaching.
Lecture Slides in Intermediate Macroeconomics
Slides in PDF format from a public lecture given at the London School of Economics and Political Science in June 2014. Piketty explains the thesis of his best-selling book about inequality. Many of the slides are graphs showing changes in inequality and taxation in various countries over the 20th Century, with notes explaining Piketty's interpretation of these trends. Video and audio of the lecture are available from the same site.
About two dozen short animated lectures and online slide shows for micro and macroeconomics. The slides are in a Flash format which does not allow editing, but allows readers to step through and recap. They use animation to build up graphs and show their interrelation.