Remember designing for websites when we had enough to get started building with color, layout, look and feel, etc? Oh yea, that was then. Social media plugins are now an integral part of the design, especially in wireframes. Wouldn't you say?
A colleague and I had this very discussion yesterday. No longer are websites just websites, but more of a gateway between all of our social media connections to the world.
Every site that I build now includes a visit to other websites to grab code or account numbers (we have Drupal modules that only need account numbers, like Google Analytics).