A Notifications plugin that allows users to subscribe to information updates based on a node's taxonomy. Primarily designed to integrate with nodeprofile to allow people to tag themselves, and receive updates based on the terms they have assigned to their nodes.
Usage examples
This module has been developed for School of Everything to keep users up to date on their interests. We use this module in conjunction with the taxman to allow users to tell us what subjects they are interested in.
This module also interfaces with Taxonomy NCO to provide notifications of similar subjects. Taxonomy NCO performs analysis on large freetagging vocabularies to infer semantic similarities, or 'other things that people might be interested in'.
A high level description of how this module was initially developed and implemented is available at http://drupal.org/node/284675.
This Module provides an "Address book" feature. It searches an LDAP server for records and allow people to view the returned set. My company use it as a Company Directory.
Daylife Integration for Drupal. This module provides a content aggregator for Daylife. It allows administrators and users to define 'Daylife Feeds' and import content from Daylife.