OTRS is an Open source Ticket Request System (also well known as trouble ticket system) with many features to manage customer telephone calls and e-mails. The system is built to allow your support, sales, pre-sales, billing, internal IT, helpdesk, etc. department to react quickly to inbound inquiries.

Alfresco is an Open Source Enterprise Content Management (ECM) system that provides features for Document Management, Collaboration, Records Management, Knowledge Management, Web Content Management and Imaging. Alfresco has the goal of providing an Open Source ECM system that surpasses commercial ECMs in terms of features, functionality and benefits to the user community.

SugarCRM is a market leading customer relationship management (CRM) application. SugarCRM's open source architecture easily adapts to any business environment by offering a more flexible, cost-effective alternative than proprietary applications. This JumpBox is for SugarCRM 5.x.

Silverstripe is a standards-compliant content management system that allows the user to manage a dynamic content site. Silverstripe utilizes MVC architecture and has a desktop feel with its use of AJAX-based controls.

vTiger is an open source, web-based customer relationship management (CRM) system that competes with applications like Goldmine, SugarCRM and Salesforce.com. For companies with multiple employees and multiple customers, a rock-solid customer relationship management system is the cornerstone of the business.

Trac is an advanced tool for tracking software development projects. It provides a simple wiki, issue tracking system and tight integration with the Subversion revision control system.

MoinMoin is an advanced, easy to use and extensible Wiki Engine with a large community of users. It’s written in Python and has a clean easy to understand user interface. Since it’s a Python program it’s not one of the most popular wikis, but that’s a shame as it has a very clean interface and is a very powerful tool for documentation projects. This makes the JumpBox for MoinMoin even more valuable, because it allows us to expose this great Wiki system to more users who we believe will find it quite valuable.

PunBB is a lightweight discussion forum that provides the essential features to host a thriving community without the tedious database, web server and application setup. It may have fewer bells and whistles than other forum applications but it has an intuitive user interface and renders XHTML-compliant output.

TikiWiki is your Groupware/Content Management System solution with a long list of features to help you build a compelling web based community.

Moodle is a course management system that allows educators to create online learning communities for their students. It has an open design with a large developer community creating plugins, themes and modules. It's used all over the world in environments large and small and is one of the better supported Open Source course management systems. The JumpBox for Moodle is a great way to get up to speed with Moodle and requires a minimal investment in time and money.