A PAS plugin which can manage local roles via an adapter lookup on the current context
Content product for creating multi-section exhibits for museums and similar sites
A custom folder ordering implementation, which stores order persistently, but sorts content based on a rule.
Plone addon that creates a slider viewlet containing related content.
Timeline views for collections and folders (using verite TimelineJS).
Integration of Zoom.it hosted image zoom in plone.
A small Zope 3 package (which also works with Zope 2.10+ and Five) that allows you to attach ratings to content.
Zope2 support for zope.intid
A python library for using National Public Radio's API (http://www.npr.org/api/index)
A registry and adapters for converting urls for various video sharing sites into embed codes.
ZODB blob support for Plone
User-configurable, blob-aware image scaling for Plone.
Installation and migration support for five.intid within Plone/CMF
Layout mechanisms for Plone
Plone support for z3c.relationfield
A set of components to provide a content centric API for the engine from plone.relations, as well as a few different core relationship types and policies.
Upgrade machinery for Plone.
Plone support for the contentratings package
Tools for defining and querying complex relationships between objects
ATField for plone.relations
Default Content Types for Plone 2.1-4.3
Diff tool for Plone
Versioning for Plone
Zope catalog index for paths
An Archetypes widget that controls the vocabulary or display of otheer fields on an edit page