Here we have our own little Pynchon website, and just the other week I learned about a Pynchonian deal of which I previously heard nothing.
Starting in 1979, scholars interested in the works of Thomas Pynchon began collecting bibliographical notes on all essays and articles written about those works. Recently they ceased publication.
Here is a link to the remains of the hard copies available for sale. I've been trying to find some copies of my own, but after pulling up the website to grab the URL for the preceding link, I'm tempted to just make the purchase.
If ordered in time, they ship a DVD copy of Prufstand 7 along with the issues. Prufstand 7 is a German-made meditation on rockets and death that uses elements of Gravity's Rainbow. In an odd note, up until Paul Anderson's Inherent Vice in 2014, it was the only movie that got the okay from Pynchon himself.