A couple of weeks ago I put the entertaining promotional video for “Paradox and Infinity,” an online course by Augustín Rayo (MIT), in the Heap of Links. In case you missed it, I’ve put it at the bottom of this post. A few other online courses have been brought to my attention that look particularly good, including: two taught by large teams at the University of Edinburgh, Introduction to Philosophy and Philosophy and the Sciences; Introduction to Bioethics from Georgetown’s Kennedy Institute of Ethics; The Ethics of Eating, put on by Cornell’s Andrew Chignell and William Starr; one featuring Walter Sinnott-Armstrong (Duke) and Ram Neta (UNC) on philosophical arguing and statistics called Reasoning, Data Analysis, and Writing; and Revolutionary Ideas: An Introduction to Legal and Political Philosophy, put on by Alexander Guerrero (Pennsylvania), which got some attention when rapper Lupe Fiasco tweeted about it. There’s also the popular set of courses offered by the University of New Orleans (mentioned here), as well as Michael Sandel’s world famous course, Justice. I’m sure there are many other good ones out there—feel free to mention them in the comments. I’d be curious to hear from those who have made such courses what they think the particular challenges are, and what makes for a good one.