TL;DR Summary: Employers encourage employees to share company propaganda on their personal social media pages.
Interesting. Because social media is a largely frictionless conduit for propaganda messaging, some companies are encouraging their staff to “share” the company messaging on their own:

Clearly, businesses are coming to realize that employee advocacy is a powerful technique in drawing the attention of a larger audience.

From CEOs to front office staff, more companies are now encouraging employees to leverage their personal social profiles to share the company’s message.

Source
The recommendation is to, first, encourage such activity by employees. Then, begin to organize and leverage the content being created by employees and encourage its sharing on social media. The writer suggests holding contests to give incentives for staff to “share”.