It's a set of questions posed on the Usenet newgroup rec.games.backgammon and viewable via Google Newsgroups. As such it uses text format, so the board setups are a bit awkward to read, especially as chequer movement is the "wrong" way and the home tables are on the left.
People discuss their answers but the final answer is uisually in terms of a GbnuBg rollout. For those not familiar with that it will probably look like so much gobbledegook. Don't worry too much about that; the discussions should be interesting.