SNOBOL4 and SPITBOL Information  
   Catspaw Inc's SNOBOL site.
   http://www.snobol4.com/

Macro Implementation of SNOBOL4 in C  
   A port of Macro SNOBOL4 (The original Bell Telephone Labs implementation, written in SIL macros) for machines with 32-bit (or larger) pointers. Supports full SNOBOL4 language plus SPITBOL and other extensions.
   http://www.snobol4.org/csnobol4/

SNOBOL4 Resources  
   Information and links about SNOBOL4.
   http://www.snobol4.org/

Vanilla Snobol4 Reference Manual  
   Listed in outline format and covers running a Snobol4 program, statements, keywords, operators, functions, and system messages.
   http://burks.bton.ac.uk/burks/language/snobol/catspaw/manual/contents.htm

Hello, World program  
   SNOBOL4 & SPITBOL
   http://www2.latech.edu/~acm/helloworld/snobol.html

SNOBOL Language Web Page  
   Introduction to SNOBOL Programming Language.
   http://cs.fit.edu/~dclay/cse5040/snobol.html

SNOBOL4+ user notes  
   Information for people having documentation for the Vanilla SNOBOL programming language and wishing to use SNOBOL4+. By Michael Davis.
   http://www.sachsdavis.clara.net/Snobol4Pdoc.html