"keywords" module is released

Not sure if this is the right place to mention this, but I committed the
"keywords" module to bitkeeper.

This hook module allows you to assign keywords to module items (like
articles for instance), and to look up module items by their keywords 
afterwards.

Compared to categories, you won't find any hierarchies here, and no
filtering by keyword in combination with other criteria. On the other
hand, keywords allow you to generate "related items" across modules
and based on any keywords you like.

Compared to xlink, you can define many keywords for each module item.
And where xlink provides you with a unique (base + refid) pointing to a
particular module item [which is handy e.g. for shortcut URLs, linking
corresponding items across multi-sites, wiki-style page linking or foreign
key lookups], the same keywords can be assigned to many module items.

xlink base + refid (<)<------> module item
            keywords <<----->> module item

Enjoy,

Mike.