Ch A C-like language interpreter with C++-like classes. By SoftIntegration. http://www.softintegration.com/products/

BFC Automata An interpretter for different types of Automata, including a simmulation of Turing Machines. [Freeware] http://automata.borfig.com/

Report on Interpreted Programming Languages General report which treats some specific languages. Many fine explanations. http://www.cs.colorado.edu/~zorn/cs5535/Fall-1996/projects96/zhangx-interpret.html

Andreas Kupries: Compiled and interpreted languages Treats the meaning of interpretation, definitions. http://www.oche.de/~akupries/ics_lang.html

Mocha A new programming language that was developed for applications distributed on a small scale. Features include: if statements, nested functions, forms, and over 100 functions. [Freeware] http://www.hostultra.com/~numtel/Mocha/download.php

Edingurgh LFCS Laboratory for Foundations of Computer Science, U of Edinburgh, UK http://www.inf.ed.ac.uk/research//lfcs/