Many CMS systems include various buttons which you can enable/disable by flipping a switch. They are simple buttons with no options - Facebook Like, Twitter and Google Plus. In effect, you can enable the trio on a website which isn't social media connected, has no FB, Tw or G+ accounts or profiles.
Q1) Is there much/any benefit to be had by enabling the triplets with no other social media involvement?
Q2) For the small business that really does not have the time/funds for social media, how much is minimally necessary?
Q3) Third party SM management - how does it work when a business farms out SM? Do they hire someone to tweet as them, post to FB, G+ as them? What is the norm? How much can the third party who isn't a subject matter expert of the business do for them?