I would add SQL to your examples of subject specific languages. Great language in a very specific application that lots of developers know and are familiar with

I would add SQL to your examples of subject specific languages. Great language in a very specific application that lots of developers know and are familiar with but would never write a web server with it even though it is arguably turning complete[1]. In my experience using SQL as an example also sidesteps a few flame wars around languages that are nearer and dearer to people's hearts. [1] http://stackoverflow.com/questions/900055/is-sql-or-even-tsql-turing-complete http://stackoverflow.com/questions/900055/is-sql-or-even-tsq...