Three links, in order of length (from longest to shortest, so if you're feeling ADD click on the bottom link first, and work up).

This is from a few years ago, but it's been getting reblogged a lot recently: Let's Tell a Story Together (A History of Interactive Fiction). It's an engaging read, and includes some recommendations of modern IF works to check out. I bought the Infocom Masterpieces collection back in the day, though -- it may be time to bust that out again and enjoy some old friends.

Also reblogged from a few different sources: Milliways: Infocom's Unreleased Sequel to Hitchhiker's Guide to the Galaxy. This guy has a copy of Infocom's shared drive from 1989, and does some archeology on it to find out some of what happened to HH2. And then -- a bunch of Infocommies descend in the comments section to reminisce and correct. It's fascinating. The comments have the usual amount of Internet e-thuggery, but they're still worth skimming over for the Infocomments.

Finally, an interesting read on the process of delivering a hotfix for an MMO.