Wordpress auto post poster on social networking websites -- 3

I need an wordpress plugin like next gen auto social sites poster plugin Basically that plugin must be able to post on few social networking websites 1. Facebook 2. Twitter 3. Linkedin 4. Pinterest 5. Google Plus 6. tumblr 7. youtube 8. Instagram These all features can be available freely, but I want plugin to auto post for users Eg. When someone register on our website, he must add his user accounts information in our database i.e user id and password and after that...he logins in our website, write his post and our website must be able to post it on their all social networking accounts linked with our website