psycopg is a PostgreSQL database adapter for the Python programming language. Its main advantages are that it supports the full Python DBAPI 2.0 and it is thread safe at level 2. It was designed for heavily multi-threaded applications that create and destroy lots of cursors and make a conspicuous number of concurrent INSERTs or UPDATEs. The psycopg distribution includes ZPsycopgDA, a Zope Database Adapter.
MightyCal is a powerful calendar/schedule building program which aims to be the MS Access of the Web calendaring world. It provides an easy-to-use administration interface for developing custom calendars of many types, from simple event bulletin boards, to schedulers of human/physical resource availability, to schedulers which automatically take programmed actions. Users of a MightyCal site can choose to view calendars in a wide variety of formats on numerous devices, from standard HTML to PDF and WML. MightyCal's architecture combines the object-oriented web development of Zope with the XML transformation capabilities of Cocoon.
ACASUserFolder is a User Folder implementing the Yale CAS single-sign-on (SSO) authentication method. It features support for Yale CAS architectures 1.0 and 2.0, Plone support with a quick installer, POST and GET methods handling on session timeout, a test panel for easy setup, and online help.
With Plomino, you can create your own specific applications in your Plone site directly from the Plone Web interface without Plone development. You can create and design forms in WYSIWYG mode. You can easily embed charts or maps. You can create specific actions. You can adapt the application behaviour based on the user access rights and roles in a very granular way. You can import/export your application structure and/or your application data over HTTP between remote servers.