Observium is an autodiscovering SNMP based network monitoring platform written in PHP which includes support for a wide range of network hardware and operating systems including Cisco, Windows, Linux, HP, Dell, FreeBSD, Juniper, Brocade, Netscaler, NetApp and many more.

Redmine is a Rails web application that provides integrated project management features, issue tracking, and support for multiple version control programs. It includes calendar and gantt charts to aid visual representation of projects and their deadlines. It also features multi-project support, role based access control, a per-project wiki, and project forums.

Odoo is an all-in-one business management suite of mobile-friendly web apps that integrates everything you need to grow your business: CRM, website content management, project management, human resources, accounting, invoicing and more. Odoo apps integrate seamlessly to provide a full-featured open source ERP, but can also be used stand-alone. Python programmers can develop their own app modules, or choose from an array of free open source such as those provided by OCA; or paid commercial ones.

Joomla! is an award-winning Content Management System (CMS) for building websites as well as a Model-view-controller (MVC) Web Application Development framework. Features include page caching to improve performance, RSS feeds, printable versions of pages, news flashes, blogs, polls, website searching, and language internationalization.