Produce & Publisher server integration with Plone
Produce & Publish Authoring Environment
ZopeHealthWatcher allows you to monitor and debug the threads of a Zope application.
A simple jQuery Plone component for hiding email addresses from spammers.
Quickly remove lots of spam comments from your Plone Site
UI and utility methods to generate sampledata for Plone projects
Infrastructure to add a ReStructuredText based help system to plone sites
Easily setup readonly zeo clients
jquery.bookmark integration with Plone 4
Plone search results through flexigrid
An extended event content-type for Plone (and Plone4Artists calendar)