Jessica Merrell, who has over 112,000+ followers, a book, and a consulting firm. With a single Tweet, she can make corporations cringe, or love her. She got fired because her last company was concerned about the following she had. 

It made me think, if an employee had such a tremendous following and clout, would you be concerned that on an off-day, they could single handed bring negative (or positive) attention to you? 

Jessica tells all in this feature that kick starts off a string of HR leaders: http://bit.ly/VPZ8g7