A handy pocket reference for some of the most often used Textpattern page tags.
Note: the print is rather small, in order to fit into such a small size.
This PDF document gathers all the tags available in the Textbook Alphabetical Tag Listing
Textpattern does not offer an obvious way to add meta tags to a template, but its easy to implement a custom description and set of keywords for each article.
This is a concise outline of what I did to get a custom 404 page working with Textpattern.
Note: this method is no longer necessary, Textpattern has built-in support for error pages that did not yet exist when this article was posted.