AddRemoveWidget + ComboBoxWidget for Plone
Plone Keyword Manager allows you to change, merge and delete keywords in Plone and updates all corresponding objects automatically. It uses a similiarity search to support you in identifying similar keywords. Keywords can be cleaned up from time to time by a site manager to create a consistent vocabulary.
External searches in Plone
Patch for DirectoryResource to allow traversal
A Plone content rules condition for HTML tags
A simple package to add jQuery Tools Tabs UI support to Plone
Replace that annoying KeywordWidget with the much more helpful AddRemoveWidget!