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