http://haris.tv/2007/04/24/admin-ssl-new-wordpress-plugin/
A WordPress plugin that encrypts the admin interface traffic over SSL to increase site security.
http://codex.wordpress.org/Main_Page
The WordPress development wiki, aka the codex. Documentation, instructions, etc.
http://fucoder.com/code/permalink-redirect/
This plugin allows you to redirect permalinks to a new location or from an old permalink structure to a new one.