The following are tips, techniques, help, and advice for working with WordPress under the hood and behind the scenes: code, database, feeds, backend, customization, programming, hacks, and more.

For information on WordPress Theme customization and development, see WordPress Theme Resources.

For information on WordPress Plugins, see WordPress Plugin Resources.

This is an ever-changing and growing list and covers multiple versions of WordPress.

WordPress Administration Tips and Techniques

• 12 Essential Security Tips and Hacks for WordPress
• A Shell Script for a Complete WordPress Backup – Theme.fm
• Strategies for Successful WordPress Upgrades
• Find, Search, Replace, and Delete In A WordPress Database – WordCast
• A to Z of WordPress .htaccess Hacks – WPShout.com – WPShout.com
• 10 awesome .htaccess hacks for WordPress – CatsWhoCode.com
• How to Fix a Hacked WordPress Blog – JTPRATT
• WordPress Security: How to Protect Your Site – Test King
• 13 Vital Tips and Hacks to Protect Your WordPress Admin Area
• How to automatically email contributors when their posts are published – WPRecipes
• How to automatically obfuscate email addresses on your WordPress blog – WPRecipes
• How to change WordPress default FROM email address – WPRecipes

The WordPress Administration Panels

• Automatically redirect to current page after login – WPRecipes
• WordPress Setup in Less Than 3 Minutes with SSH
• Add custom links to WordPress admin bar – WPRecipes
• How to change WordPress editor font – WPRecipes
• How to show an urgent message in the WordPress admin area – WPRecipes
• Hacking the WordPress Admin: Mastering Custom Columns
• How To: Create Tabs with the Settings API in WordPress

WordPress Feeds and Feed Integration

• WordPress Posts Without Titles in RSS feeds
• Maximize Your Feedburner Settings with The Best Configuration – TentBlogger
• Adding “Feed Only” and “Site Only” Shortcodes in WordPress – Theme.fm
• Redirect feeds to a single format – WPRecipes
• Create an Articles-Only Feed – Digging into WordPress