This hack was a system I built while working in the SRI Bioinformatics Group. A working example of a "knowledge spreadsheet", which just means a spreadsheet-like interface that can do semantic or relational computations.
The original name was "Web Groups"; I don't like either of these names very much.
Unlike almost everything else I've built, this is still running, supported, and used! This is partly because it was written as a subsystem of Pathway Tools, a Common Lisp system that has been under development for at least 25 years, and has a broad user community of working biologists. That is really remarkable these days. Other than Emacs I can't think of another codebase I've touched that has that kind of a shelf life.