BitNami is site that provides completely self-contained, easy to install applications stacks for Linux, Windows and Mac OS X. The stacks contain Apache, MySQL, and any other open source software required in order to run the application. Currently available stacks are: Wordpress, Dokuwiki, Joomla!, Drupal, Roller, Liferay, Dokuwiki, Mediawiki, phpBB and Mantis. Stacks for SugarCRM, KnowledgeTree, eGroupware and other open source projects will be released soon, and you can also vote for the application you’d like to have packaged by BitNami.

From the site:

• Easy to Install: BitNami Stacks are built with one goal in mind: to make it as easy as possible to install open source software. Our installers completely automate the process of installing and configuring all of the software included in each Stack, so you can have everything up and running in just a few clicks.

• Independent: BitNami Stacks are completely self-contained, and therefore do not interfere with any software already installed on your system. For example, you can upgrade your system’s MySQL or Apache without fear of ‘breaking’ your BitNami Stack.

• Integrated: By the time you click the ‘finish’ button on the installer, the whole stack will be integrated, configured and ready to go.

• Relocatable: BitNami Stacks can be installed in any directory. This allows you to have multiple instances of the same stack, without them interfering with each other.