Learning Rails for the first time should be fun, and Rails for Zombies allows you to get your feet wet without having to worry about configuration. You'll watch five videos, each followed by exercises where you'll be programming Rails in your browser.

All the examples in this tutorial can be run simply by clicking on them.

You can enter your own code by typing it into the box above. The code will be sent and run when you type Enter. You can type a lot of one-liners this way. However, if you open a code block with any form of braces the code will not be sent until the braces are matched and the cursor is positioned at the end of text. This allows you to write multi-line code and freely edit the code. You can always click on the Evaluate button or Ctrl Enter to force a send. Examples from other places can be entered using the regular cut and paste. The maximum text size is limited to about 2000 characters.

Already sent code can be recalled by using Ctrl with the up or down arrows. These you can then edit using the up/down arrows and send again. So you can try an example, then call it back, make changes, try different ideas and check how the syntax works.

Welcome to your first taste of Haskell! Let's try Haskell right now!

A hackergotchi is an avatar used in blog aggregators. Traditionally they are made in GIMP and consist of a digital headshot with a drop shadow. It's a fairly basic technique, and this article will show you how to do it with GIMP.

Mercurial is a modern, open source, distributed version control system, and a compelling upgrade from older systems like Subversion. In this user-friendly, six-part tutorial, Joel Spolsky teaches you the key concepts.