Fljud (the Flexible LDAP Jabber User Directory) is a JUD that uses an LDAP directory for user information. You may find it to be very useful if you already have a Jabber server using LDAP for account authentication and vcards. It can replace your existing JUD, or can be quickly adapted to present and edit other information from your LDAP directory using Jabber.
Elixir is a declarative layer on top of SQLAlchemy. It is a fairly thin wrapper that provides the ability to define model objects following the Active Record design pattern, and using a DSL syntax similar to that of the Ruby on Rails ActiveRecord system. It does not intend to replace SQLAlchemy's core features, but instead focuses on providing a simpler syntax for defining model objects when you do not need the full expressiveness of SQLAlchemy's manual mapper definitions.
pg_proboscis is a pure Python driver/interface for PostgreSQL. It is designed to give maximum flexibility to a user by providing protocol-level prepared statements and cursors. It features basic SSL support, COPY TO/FROM, automatic encoding/decoding of character data, and timestamp support regardless of the backend configuration(integer_datetimes).