c开发者_StackOverflowould u suggest some socialnetworking plugins for inviting and adding friends, for both registerd and unregistered users in website.
thanks
Check this website http://jimneath.org/2008/04/25/building-a-social-network-site-in-rails/ for building a social networking site in rails using some plugins.
and check the stackoverflow question for some more information.
Best Ruby on Rails social networking framework
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