Elgg is an open-source social web application licensed under GPL version 2, and runs on the LAMP (Linux, Apache, MySQL, and PHP) or WAMP (Windows, Apache, MySQL, PHP) platform. It offers a networking platform combining elements of blogging, e-portfolios, news feed aggregation, file sharing, and social networking.
Elgg provides each user with a personal weblog, file repository (with podcasting capabilities)
Because it's open source, and has many plug-ins, Elgg can be extended in unlimited ways. This book provides users with all they need to know to create safe, fun social networks. It is especially useful in education as it has many features making it suitable for e-learning, including groups, communities, and blogs that can be used for online classes
People teaching e-learning and those who are interested in social networking will find this book useful. For more information about the book, please visit: http://www.packtpub.com/
