Poplog  
   Rapid prototyping multilanguage software development environment; incremental compilers for: POP-11, Prolog, Common Lisp, Standard ML; versions: Linux, Unix, VMS. Downloads, forum postings, libraries, workshops, Twiki, resources. [Open Source]
   http://www.poplog.org/

Popsh  
   For scripting with Poplog and POP-11: attempt to facilitate use of pop-11, and other Poplog supported languages as scripting languages like Perl, Tcl, Python, Bash.
   http://www.red-bean.com/~craig/popsh/

Information About Poplog and POP-11  
   What they are, history, free versions online, platforms, and comments.
   ftp://ftp.cs.bham.ac.uk/pub/dist/poplog/poplog.info.html

Free Poplog  
   A multi-language AI system that contains Prolog, Common Lisp, ML and POP-11 implementation.
   http://www.cs.bham.ac.uk/research/poplog/freepoplog.html

POP-11  
   Hello World in pop-11.
   http://www2.latech.edu/~acm/helloworld/pop11.html

POPLOG for Natural Language Processing  
   Teach, help, reference files, to help students learn about AI theory and programming techniques; for example, a summary of pop11, a summary of prolog, a summary of POPLOG TEACH files. It includes several library programs and TEACH files relevant to NLP.
   http://www.comp.leeds.ac.uk/nti-kbs/ai5/poplog.html

Prof. Robin Popplestone  
   Developed many key ideas of POP-11. History: The Early Development of POP, Functional and Interactive Computer Language Design (Design of an Interactive Functional Language).
   http://www-robotics.cs.umass.edu/remembrance.html