Apache Archiva is an extensible repository management software that helps taking care of your own personal or enterprise-wide build artifact repository. It is the perfect companion for build tools such as Maven, Continuum, and ANT.
Archiva offers several capabilities, amongst which remote repository proxying, security access management, build artifact storage, delivery, browsing, indexing and usage reporting, extensible scanning functionality... and many more! Get the latest updates, follow us on twitter @archiva.
And in case you were wondering, it is pronounced [ahr-kahy-vuh], like archive but with an a!
This is the recommended 1.1.x release of Archiva.
This is the recommended latest release of Archiva.
Simple out of the box configuration and quick start guide
Read the users guide and administration documentation
Documentation is also available for previous versions
Get support from the mailing lists and wiki, file issues, and even get involved in the development.
Need more? Try some of these resources.

Java Power Tools (John Smart; April 2008)
Contains a section on Archiva and repository management