Yeah, that's me. nCapture a snapshot of it, from time to time — so if it ever goes offline (or off the rails: requires a subscription, begins to serve up ads), you have the last "good" one locally.

I have a snapshot of Wikipedia as well (well, not the whole of Wikipedia, but 90GB worth).

Which Wikipedia snapshot do you grab? I keep meaning to do this, but whenever I skim the Wikipedia downloads pages, they offer hundreds of different flavors without any immediate documentation as to what differentiates the products.