This tutorial will show you how to make a template for viewing your MOTD offline so you can see how your MOTD is going to look without logging into your game. If you have the time, creativity, and some HTML and Photoshop skills this can help you really put some work into the design of your MOTD instead of just some text. This is not really a tutorial for making your MOTD. If you need more details on that visit Left4Dead411.com they have a nice explanation.
I have prepared a template with this method already that you can download here. My template is in the resolution of 1650×1080.