Riak combines a decentralized key/value store, a flexible map/reduce engine, and a friendly HTTP/JSON query interface to provide a database ideally suited for Web applications. And, without any object-relational mappers and other heavy middleware, applications built on Riak can be both simpler and more powerful.

HttpCore (main) is a library for HTTP communication that can be used on either client or server side. A second library, HttpCore-NIO, adds support for Java NIO. HttpCore has no dependencies beyond the JVM, but also no built-in support for advanced features such as cookie management or authentication. It defines a framework for plugging in these features.

Apache Forrest is a publishing framework that transforms input from various sources into a unified presentation in one or more output formats. The modular and extensible plugin architecture is based on Apache Cocoon and relevant standards, which separates presentation from content. Forrest can generate static documents, or be used as a dynamic server, or be deployed by its automated facility.

Apache Cocoon is a web development framework built around the concepts of separation of concerns (making sure people can interact and collaborate on a project, without stepping on each other toes) and component-based web development. Cocoon implements these concepts around the notion of «component pipelines», each component on the pipeline specializing on a particular operation. This makes it possible to use a «building block» approach for web solutions, hooking together components into pipelines without any required programming.