Taxonomy

The taxonomy_assoc module lets you display a node - along with the usual node listing for that term - when you view a taxonomy term.

This module makes it possible to import and export vocabularies and taxonomy terms via XML, CSV, RDF and other formats.

This module allows the administrator to change the destination of Taxonomy Term links.

As per 2011/01/12, the module appear abandoned. If you are looking for a similar module, see Relation.
If you are the maintainer and you think the project has been wrongly set as abandoned, or you are a developer and you want to take it over, please see #152292: Relationship module appear abandoned.

When a given node is displayed, this module populates a sidebar block with links to other nodes that share its taxonomy terms. Core code from the 'related nodes' block in Autowitch's excellent awTags module was used as a starting point.

In addition to using taxonomy terms instead of a separate table, this module allows some customization of the block (title, vocabulary filtering, etc).

The Category module is an alternative to, and a combination of, the Taxonomy and Book modules in Drupal core. The key feature of this module is that vocabularies and terms are nodes. In Drupal core, you use taxonomy terms (and vocabularies) to classify your content categorically, and you use book nodes to structure your content hierarchically. In the Category module, you do both of these things using category (and container) nodes. In this module, a container is the node-ified version of a vocabulary, and a category is the node-ified version of a term. A container also acts as a top-level book page, and a category acts as a child book page. You can apply category or container behavior to any node type on your site.

#D7CX pledge upheld: Taxonews received a full Drupal 7 release on the day that Drupal 7 was released.

A module to generate blocks containing titles of node matching terms in a taxonomy vocabulary, as links to the nodes themselves, with optional automatic content expiration based on publishing date.

Features

Module has settings for:

• Node lifetime; it defines as many blocks as there are terms in the vocabularies updated within that lifetime.
• The vocabularies used for automatic block creation.
• Inclusion of the module name in the block list, in order to group block names (True by default)
• Inclusion of blocks matching no content from the block list (True by default)

The blocks are themeable, so the list of titles can be replaced by other display choices on a per-block basis, like Drupal teasers instead of just titles, by overriding the taxonews-block-view template (function in old versions) in a theme.

This module is deprecated in favor of CCK's nodereference module, the node relativity module, and/or any future node relations APIs.

Provides a block displaying titles of nodes (related to a particular taxonomy term) in a scrolling news ticker.

Switches taxonomy terms from one vocabulary to another, and provides a "Classify" tab for editing nodes.
Looking for a new maintainer. I'm really sorry about this but I simply don't have the time to do any maintenance work at the moment, all the more so since my own site is still on D5 and likely to remain so for some time, until other modules have been upgraded to D6.