SQLite is an open source database that has been growing in popularity. It's footprint is small and is used in a wide-variety of types of applications.
The Castle Project is an open source project that runs on .NET, providing an MVC (Model-View-Controller) framework similar to the popular Ruby on Rails. The Castle Project has been in development since 2003 and released Version 1.0 RC2, in November of 2006. As the project nears its V1.0 RC3 we caught up with Hamilton Verissimo, the founder of the project.
The ActiveHibernate project brings Hibernate features to JRuby - for those tricky ORM use cases that go beyond what ActiveRecord offers. We talked to project maintainer Johan Andries.
One of the common misconceptions about Object/Relational Mapping (O/R Mapping) frameworks is that they give developers caching for free and that caching improves performance. While O/R Mapping frameworks do rely on caching, improved performance isn't in the cards.