Help with Twitter, Facebook, and Email Invites

I need help with the invite page of my website. There are buttons that allow users to invite their contacts to my website. There are buttons for Facebook - when clicked, the user should be able to log into facebook and invite their contact list Twitter - when clicked, the user should be able to log into facebook and invite their contact list e.g imports address books from Linkedin, Facebook, Yahoo, Hotmail, MSN, Gmail, AOL, Outlook and Mac OS X Email contacts - upon clicking the button, the contact list of the user should open for them to invite their friends. Or the login page should open for them to login first. This is for: Gmail Outlook Yahoo I need help with integrating these with my website. Specifically, how to authenticate with the different API's and get permissions for this. My website backend is in PHP. Let me see the sample of project you must have done similar to this