This may not be the place to discuss this, but what do people think about including scans here of Mad _magazine_ imitations that may be PD by now, such as Thimk!, etc.? I only have one or two, but it is a quasi-comic territory that deserves archiving. We could avoid Mad imitations published by Marvel (Goodman) or Cracked, which would likely be problematic copyright-wise, but I have to imagine that several of the other titles by publishers long since gone are now public domain.