It shows that you trust them (boosting morale and happiness).It will make them feel valued (it’s like a little perk of the job). Taking short breaks throughout the day will boost mood (and productivity). Connecting with loved ones will boost their happiness.
If you encourage your employees to utilize it day-to-day, posting fun, friendly things about the company, sharing interesting articles and posts and just generally showing off how much they love their job, it’ll really (really) boost your employer brand.
It’s great for improving communication across your company too, particularly if you have multiple offices and/or remote workers.
It’s just too tempting for employees to have a quick glance, reply to a quick comment or say happy birthday to someone they’d forgotten about…
Hacking, viruses and scams are so common these days and a huge proportion of them originate on social media.
I once worked for a company who set up some special, sector-specific Facebook groups for their ‘prestigious’ clients; enabling them to put questions to staff members (and other clients) about business (great idea for engagement).