Apache Roller is a Java

Java (programming language)

Java is a programming language originally developed by James Gosling at Sun Microsystems and released in 1995 as a core component of Sun Microsystems' Java platform. The language derives much of its syntax from C and C++ but has a simpler object model and fewer low-level facilities...

-based Open Source

Open source

The term open source describes practices in production and development that promote access to the end product's source materials. Some consider open source a philosophy, others consider it a pragmatic methodology...

 "full-featured, Multi-blog, Multi-user

Multi-user

Multi-user is a term that defines an operating system or application software that allows concurrent access by multiple users of a computer. Time-sharing systems are multi-user systems. Most batch processing systems for mainframe computers may also be considered "multi-user", to avoid leaving the...

, and group-blog server suitable for blog sites large and small". Roller was originally written by Dave Johnson in 2002 for a magazine article on open source development tools, but became popular at FreeRoller.net (now JRoller.com) and was later chosen to drive the employee blogs at Sun Microsystems, Inc. and IBM developerWorks blogs.

On April 23, 2007, Roller project graduated from incubator, so it became an official project of the Apache Software Foundation

Apache Software Foundation

The Apache Software Foundation is a non-profit corporation to support Apache software projects, including the Apache HTTP Server. The ASF was formed from the Apache Group and incorporated in Delaware, U.S., in June 1999.The Apache Software Foundation is a decentralized community of developers...

and it was released 3.1 version, first official release.