Due to the nature of working with terms and taxonomies, WP core functions that are used to add new terms are quite robust, but in the same time very, very slow. This article will show how WP terms function work and what problems that can cause for large websites.
New major release for GD Custom Posts And Taxonomies Tools plugin is here. There are two new features (improved validation and importing of terms) and number of improvements and fixes. As usual, all new features are only for Pro version.
This new release is focused on improving the taxonomies widgets. Both widgets are expanded with few more options to hide empty and exclude terms, and list widget now can display terms in the form of the drop down list with regard to the hierarchy.
With WordPress 2.8 we got another interesting feature called custom taxonomies. You can make taxonomies from anything you want and use them much like you already use tags and categories. Unfortunately, themes offer only partial support (unsolvable problem) for custom taxonomies, but it’s not that complicated to implement.