Social networking is an effective means of communication in this modern life where people can come together participate in discussions, forums, chat and can acquire a list of services over the internet with possible costs. The It is a social networking framework. It provides the necessary functionality to allow you to run your own social networking site, whether publicly (like Facebook) or internally on a networked intranet (like Microsoft Sharepoint)!
Because Elgg provides a very good basic infrastructure and a lot of default features Elgg is a great platform to build communities with. One of the big differences compared to traditional Content Management Systems is that Elgg is building from the ground up as a social network. This approach centralizes users and their relations instead of content.