HEADS UP!
I’ve had atbref.com for a while now and I’m looking at updating all the aTbRef content by moving it from acrobatfaq.com to atbref.com. I’d update any links in HTML documents but clearly bookmarks and web indexes may fail if/when this occurs. Despite short term pain, I think this makes more sense and makes it easier to give helpers access to just aTbRef content for long term management.
I think putting it on its own domain and getting it spidered by the Internet Archive should give some resilience in the near-/mid-term. I’m open to dissenting views on this.