You won't find an open source version of MySpace, but even at the current .92 version,
Elgg comes darn close. So why would you even want to create smaller communities? Simple: While Elgg lets corporations, governments, and schools quickly establish blogs, the system's collaborative features encourage building communities of users with shared interests. Other Elgg fine points include podcast support, file repositories, user profiles, an RSS aggregator, and branding features. Significantly, the software integrates with other IT systems and provides OpenID authentication. Developers can add specific functions using an open API.
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