"MOOCs Started Out Completely Free. Where Are They Now?," Edsurge wrote on April 20, 2017. This article fails to disclose that Edsurge and Class Central share an investor: Imagine K-12.

This sort of disclosure (or lack thereof) is particularly important as Edsurge now sells schools a service in which it recommends ed-tech products that it says schools should buy.

For more information about this and other disclosure alerts, read this blog post.