Project website: http://ofbiz.apache.org/
Project Information: Apache Open For Business (Apache OFBiz) is an open source enterprise resource planning (ERP) system. It provides a suite of enterprise applications that integrate and automate many of the business processes of an enterprise.
Books on Apache OFBiz:
Project website: http://www.ogre3d.org/
Project Information: OGRE (Object-Oriented Graphics Rendering Engine) is a scene-oriented, flexible 3D engine written in C++ designed to make it easier and more intuitive for developers to produce applications utilising hardware-accelerated 3D graphics.
Books on Ogre:
Project website: http://www.opencart.com/
Project Information: A free shopping cart system. OpenCart is an open source PHP-based online e-commerce solution.
Books on OpenCart:
Project website: http://www.OpenCms.org
Project Information: OpenCms is a professional, easy to use website content management system. OpenCms helps content managers worldwide to create and maintain beautiful websites fast and efficiently.
Books on OpenCms:
Project website: http://www.openoffice.org
Project Information: OpenOffice is the leading open-source office software suite for word processing, spreadsheets, presentations, graphics, databases and more.
Books on OpenOffice:
Project website: http://www.opensips.org/
Project Information: OpenSIPS is a Session Initiation Protocol (SIP) proxy server, call router, and user agent registration server used in Voice over Internet Protocol and instant messaging applications.
Books on OpenSIPS:
Project website: http://www.openswan.org
Project Information: Openswan is an implementation of IPsec for Linux and is licensed under the GPLv2 with some modules having a different (BSD) license.
Books on Openswan:
Project website: http://openvpn.net/
Project Information: OpenVPN is a free and open source software application that implements virtual private network (VPN) solutions for creating secure point-to-point or site-to-site connections in routed or bridged configurations and remote access facilities.
Books on OpenVPN: