Anthony Tartaglia

Cool web app that taps into the Twitter API. Basically, you give it a feed URL and it will post updates to that RSS feed into your Twitter account.

.htaccess files make Apache so much easier to work with. Here is a decent list to get you started.

This is a really nice WordPress plugin that gives every widget an extra control field called "Widget logic" that lets you control the pages that the widget will appear on.

Turn your WordPress post categories into a search powerhouse! This plugin gives you the ability to provide your users with a widget full of dropdowns based upon parent categories and their sub-categories.