A general taxonomy to create relationships between content. Easy to use with standard WP Query vars.
Quickly relate content and create context between different types of content on your WordPress site using Sizeable's Content Tags.
This plugin creates a general taxonomy (tag) called Content Tags allowing you to tag any type of content. With some basic filters, the plugin can easily be extended.
You can create telationships between any core/custom post types. Great for pulling arbitrary content in coordiation with Sizeable Content Blocks: (http://wordpress.org/extend/plugins/szbl-content-blocks)