eco system

Computerworld: "In this interview Tcl creator John Ousterhout, took some time to tell Computerworld about the extensibility of Tcl, its diverse eco-system and use in NASA's Mars Lander project."

A Simon Peyton Jones interview as part of the series The A-Z of Programming Languages that Naomi Hamilton has been putting together.

Posting this one to the front page, not because of any bias towards functional programming, so much as it stands on its own as interesting and insightful from the standpoint of programming language design and evolution.