. networks 10 Facebook 10 LinkedIn 10 MySpace 11 Twitter 11 Existing social networking software 12 Drupal 12 Elgg 12 Joomla! 12 Hybrid approaches 12 Rolling your own 13 Why roll your own? 13 Easier. information. First published: October 2 010 Production Reference: 11 810 10 Published by Packt Publishing Ltd. 32 Lincoln Road Olton Birmingham, B27 6PA, UK. ISBN 97 8 -1 -8 49 51 2-3 8 -1 www.packtpub.com Cover Image. maintain 14 Licensing 14 Enhance knowledge 14 Provide a service 14 Improve business 15 Improve communication 15 Why use PHP? 16 When to use something else 16 Our site: DinoSpace 16 Feature list 18 Limitations