http://coreblog.org/ats/a-list-of-coding-standard-websites
調べたので闇雲に追加します。
Perl5
Perl::Critic::PolicySummary - search.cpan.org
http://search.cpan.org/dist/Perl-Critic/lib/Perl/Critic/PolicySummary.pod
perlstyle - search.cpan.org
http://search.cpan.org/dist/perl/pod/perlstyle.pod
C
==
C and C++ Style Guides (Linux kernel とかたくさん)
http://www.chris-lott.org/resources/cstyle/
scala
=========
Scala Style Guide — Scala Style Guide v1.1.0 documentation
http://davetron5000.github.com/scala-style/
lua
lua-users wiki: Lua Style Guide
http://lua-users.org/wiki/LuaStyleGuide
===========
たくさん(C,C++,Objective-C,Python,R,Javascript,XML)
google-styleguide - Project Hosting on Google Code
http://code.google.com/p/google-styleguide/
翻訳 | textdrop
http://www.textdrop.net/translation/
Google's R Style Guide (tentatively translated in Japanese)
http://www13.atpages.jp/t6s5/docs/r-style-guide-j.html
Google Python スタイルガイド — lazy programmer's works. v1.0 documentation
http://works.surgo.jp/translation/pyguide.html
Google JavaScript Style Guide 和訳 — Google JavaScript Style Guide 和訳
http://cou929.nu/data/google_javascript_style_guide/
Mozilla (C++/Jacascrpt)
=============================================
Coding Style - MDC
https://developer.mozilla.org/En/Developer_Guide/Coding_Style
Labs/Jetpack/Reboot/Style Guide - MozillaWiki (Jetpack/Javascript)
https://wiki.mozilla.org/Labs/Jetpack/Reboot/Style_Guide (/Reboot うける)
GNU (C/ドキュメント)
=======================================
GNU Coding Standards
http://www.gnu.org/prep/standards/standards.html
Free BSD (C/カーネル)
=========================================
style(9)
http://www.freebsd.org/cgi/man.cgi?query=style&sektion=9
Synfony(PHP)
=======================
HowToContributeToSymfony - symfony - Trac
http://trac.symfony-project.org/wiki/HowToContributeToSymfony#CodingStandards
Adobe (Flex/ActionScript3)
===================================================
Coding Conventions - Flex SDK - Adobe Open Source
http://opensource.adobe.com/wiki/display/flexsdk/Coding+Conventions
Gentoo Sunrize
=================
CodingStandards - Sunrise Project Overlay - Trac
http://overlays.gentoo.org/proj/sunrise/wiki/CodingStandards
Yahoo! (HTML/Webメディア向け)
================Coding basics | Yahoo! Style Guide
http://styleguide.yahoo.com/resources/basic-webpage-coding/coding-basics