Link: www.socialengine.comLicense: Paid- Complete control and 100% ownership.SocialEngine PHP gives you a simple, unbranded network that you can customize in any way. You’ll have the freedom to maintain fine-grained control over all aspects of your site and content.- No “powered-by” branding.SocialEngine PHP helps you build a community that's unique to you, with absolutely no "powered by" links or "SocialEngine PHP" branding presented to your members.- Keep your contentYour community's content is yours to own. Unlike most hosted services, SocialEngine PHP never prevents you from moving your community or serving your own advertisements.- Fully unencrypted source codeYou'll have the complete PHP source code to play with, making it possible to add or integrate your custom features.- Self-hostedSocialEngine PHP is hosted on your own server where you have complete control over your community.