I'm digging into the Harvard Statistics class on iTunes U. The material is compelling, and iTunes U is amazing in general (shout-out to universities with videos on YouTube, and MIT OCW, etc. It's all good.)<p>But tracking down related URLs, texts... basically putting the pieces together or even deciding <i>which</i> amazing statistics class to download 20 files from... well all this stuff just lends itself to an social site.<p>I could have sworn there was a site posted on HN that was basically a really nice forum where people browsed ad-hoc groups that had formed around all these disparate classes. I know about OpenLearn, but that is just for OpenLearn classes. I have looked around hnsearch, and am now thinking I imagined this.<p>Jog my memory?