Plugins

WP Spam IP is a simple and effective WordPress plugin that adds known Spam IP adresses to your Settings -> Discussion -> Comment Blacklist.

Creates a page in the dashboard with a list of the spatial functions your database supports so you can do GIS with MySQL or MariaDB in WordPress.

Adds Sphinx integration to WordPress' search capability.

Unsplash.com, right in your dashboard. Add photos with one click and use them in your content right away.

This is the core of the "Sponsorship" software. This allows blog users to send E-mails to a list of contacts of their choice.

Creates a search widget to allow you to search single/multiple post types

Advanced remote posting from a wordpress master site to many wordpress clients using xml-rpc calls

This plugin convert absolute URLs in relative URLs.

Display a custom query using a shortcode

Generate queries from wp-admin