apache
Get flash to fully experience Pearltrees
This article shows 2 awesome ways to implement caching on your website using Apache .htaccess (httpd.conf) files on the Apache Web Server .
Speed Up Sites with htaccess Caching
This code will not do what you expect, because the first rule will match anything the second rule might match.
How to use RewriteCond to ignore some folders
The second version of the mod_rewrite Cheat Sheet, a quick reference guide for mod_rewrite, with rewrite flags, regular expression syntax and sample rules.
mod_rewrite Cheat Sheet (V2) - Apache - Added Bytes
.htaccess tricks and tips.. part two: url rewriting with mod rewrite.
<ifModule> more clever stuff here </ifModule>