What happened to Infocom (Magnetic Scrolls, Level 9, etc.)?
None of the companies that produced IF during the 1980s are still around and producing IF. Infocom was acquired by Activision in 1986, for instance, and is now a (not very active) “label” of that company. Interactive fiction from this era is often hard to find outside of abandonware sites and online auction sites, although some of it has been made available to the public by the company that produced it. Plenty of people are still creating IF, however, and there are hundreds – perhaps thousands – of new games, most of which are free, that have been developed since the “commercial era” of interactive fiction.