3 Steps in the right direction.
1. Link Facebook Pages (i would think this is obvious so i apologize if this is a duplicate)
2. Allow users to post to instagram, not just view it.
3. Allow users to post to RSS feeds such as their personal websites (i'm not really sure how verification would work) This may only apply to website builders with back end builders OR perhaps it could be a code that you place in your <body> tag of the CSS Stylesheet.