Learning Rail Podcasts

File Upload in PHP

Converting HTML design to a Wordpress theme

Ruby on Rails

Using the Pear Mail class

Creating a Captcha

Converting Database data to xml

PHP Videos

OsCommerce Tutorials

Ajax

Ruby on Rails at SitePoint

Javascript from Scratch at Sitepoint

Perl Tutorial
Fairly comprehensive. Goes into control structures, arrays, etc.

Parsing XML files in PHP

Making a RSS Feed

Installing PHP

setting PHP on Apache

setting PHP on IIS

Consuming RSS in Dreamweaver