Algebraic Operational Semantics and Occam: Article by Yuri Gurevich, Lawrence S. Moss.
An occam2 To Modula-3 Translator: Dissertation.
Correctness of Compiling Occam to Transputer Code: Article by Egon Borger, Igor Durdanovic.
Hello, World program: Example simple Occam program.
Into the Wibble: Occam Tutorial: Introduction to programming occam, for those who know another language.
Occam Programming Language: Growing article, with links to many related topics. [Wikipedia]
Occam-pi and KRoC: Blending CSP and the Pi-calculus: Resources for occam-pi and KRoC: Kent Retargetable occam(-pi) Compiler: descriptions, news, download, documentation, bugs, coming-soon, publications, links. [Open Source, GPL, LGPL]
ProCoS Archive: Provably Correct Systems projects, ESPRIT basic research, based on Occam and Transputer paradigm, parts: I 1989-1992, II 1992-1995. History, documents, FTP, mail list, workshops, contacts.
Programming in Occam: By Geraint Jones; Prentice Hall, 1987, ISBN 0137297734; Web edition 2001. Introductory textbook.
Programming in Occam 2: By Geraint Jones, Michael Goldsmith; Prentice Hall, 1988, ISBN 0137303343; Web edition 2001. Introductory textbook.
The Occam Archive: Information on language, available via anonymous FTP with an index; mail list, papers, calls for papers, INMOS technical notes, book list and references, contacts, information on Occam User Group: OUG.
Transputers: An introduction to occam by Casiano, Occam resources.
Transterpreter: Small, portable (strict ANSI C) runtime for occam; extensible, concise, reliable virtual machine to execute Transputer bytecode; even on LEGO Mindstorms. Written in Scheme, rewritten in C.
WoTUG: occam: Compilers, book references, online copies of manuals, a couple of examples, utilities, and information on Occam.