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Approximately 54% of CIOs report that their company policy completely prohibits employees from using social media sites such as Facebook, MySpace and Twitter while at work.
19% of CIOs say policy allows employees to use social networking sites at work, but only for business purposes.
Approximately 16% of CIOs say their companies generally take it on a case-by-case basis, allowing access to social media sites for limited personal use.
An additional 10% of CIOs are fairly liberal-minded about Facebook and the like. These technology leaders allow social networking while on the job for any type of personal use.
The final 1% of CIOs lack any type of visibility into the issue, reporting they didn't know what the company policy is on the matter.
Close to half of employees queried said they use Facebook at work and 77% of those who have a Facebook account use it at work.
Of those who do use Facebook at work, 87% said they could not define a clear business reason for accessing the site and some reported using it as much as two hours per day.
One in 33 employees say they use Facebook exclusively while at work.
Nucleus Research analysts estimate that employers could stand to gain 1.5% more productivity by banning Facebook in the workplace.