mod_auth_openid is an authentication module for the Apache 2 Web server. It handles the functions of an OpenID consumer as specified in the OpenID 2.0 specification. Once installed, a simple configuration directive can secure a directory or application on your Web server and require a valid OpenID/XRI identity. You can configure trusted/untrusted identity providers along with a number of other options.
StactiveRecord is a C++ library designed to make simple database use simple. It was inspired by Ruby on Rails' Active Record, however, no similar look, feel, or performance is guaranteed. It uses an object-relational mapping pattern to represent records as objects. It also provides persistent (basic) object relationships (one to many, many to many, one to one).
Pymur provides Python bindings to the C++ based Lemur Toolkit. The Lemur Toolkit is an open-source toolkit designed to facilitate research in language modeling and information retrieval. Lemur supports a wide range of industrial and research language applications such as ad-hoc retrieval, site-search, and text mining.