Watermarking hotlinked images

Bandwidth is cheap, but missing attribution is expensive.

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Automatically rewriting relative links

Although it's usually safe to use relative hyperlinks within a document to keep things portable, sometimes you run into trouble in certain circumstances where the concept of relative location isn't well-defined. One such situation is in an RSS feed.

This site's RSS feed automatically gets relative HREF and SRC links rewritten to absolute links. Here is how I do it. (Adapting it to other weblogging/CMS software should be pretty simple.) more...

Game theory of web design

When doing anything such as web design, it is often important to try to optimize the outcome for the greatest population, so as to get the greatest possible reward. Game theory is the simplest way to go about doing this. more...