Summary
The growth of social networking and other social media sites will be a continuing trend. Elgg is a powerful open source platform for building these types of websites. The combination of the core social engine and the customization offered through plugins provide the capabilities and extensibility needed for today's social websites. This chapter was a quick introduction to what is possible with Elgg. The following chapters give you hands-on experience with Elgg by guiding you through the processing of installing and using this software.