In Summer 2021, I started work on my own personal IBM keyboard wiki on my website aptly called Shark’s Wiki. One motivation was the uncertainly surrounding Deskthority and its wiki after their buy-out, but I’ve been wanting to deliver properly referenced content on my site for a while now – SharktasticA.
Shark's initial aim was "to tackle niche or seldom attempted stuff before". For example, the Model M4 buckling sleeve keyboards and keypads, and a comprehensive list of all Model M variants and their defining features.
Clicking around for a while, you may stumble upon relics like the authoritative IBM 3215 printer-keyboard-tower thing (in the top picture) from the early 1970s.
The IBM Lighted Program Function Keyboard (LPFK) was used as an extra input device when doing computer aided design on the IBM RS/6000 series of machines. Posted by epearl-tv.