How did the rise of social media affect job roles in the companies?

It brought about new jobs relating to the platforms and relations with the companies; when there is more focus on online interactions and policies.

Thanks for the A2A.

Ah. Social Media had a HUGE effect on job roles. It opened an entire world of jobs for us. I will just list down the few which come to my mind!

1. Managing corporate social media profiles on a regular basis
2. developing policies for that management process
3. Lawyer-ing up to support those policies and keeping a strict eye on what goes on the profiles - compliance and strong audit
4. IT development
5. Training and development to assist individuals in learning about social media 
6. Auto marketing application developments and infrastructure

and oh - so- much - more!!!