Batch RewriteRule Generator (301 / Rewrite) – Donat Studios https://donatstudios.com/RewriteRule_Generator
When not to use mod_rewrite – Apache HTTP Server Version 2.4 http://httpd.apache.org/docs/current/rewrite/avoid.html#redirect
An In-Depth Guide to mod_rewrite for Apache – Envato Tuts+ Code Tutorial http://code.tutsplus.com/tutorials/an-in-depth-guide-to-mod_rewrite-for-apache–net-6708
debugging – How can I debug mod_rewrite rules? – Stack Overflow http://stackoverflow.com/questions/7806916/how-can-i-debug-mod-rewrite-rules
The WordPress .htaccess File Explained | Randomtype Inc. http://randomtype.ca/blog/the-wordpress-htaccess-file-explained/
An In Depth Guide to mod_rewrite for Apache | Nettuts+ http://net.tutsplus.com/tutorials/other/a-deeper-look-at-mod_rewrite-for-apache/
URL Rewriting for Beginners – Added Bytes by Dave Child http://www.addedbytes.com/for-beginners/url-rewriting-for-beginners/