US - Nearly one-third of young employees say they would think twice about staying on if online websites such as Facebook were banned in the workplace, according to IT service firm Telindus.

In a survey of over 1,000 office staff, 39% of 18 to 24 year-olds say they would consider leaving if a ban is implemented. A further 21% say they would be annoyed if they are not allowed access to such sites.

This comes as companies are currently assessing if sites such as Facebook and YouTube clog up corporate networks and take up employees' time.

Managing director, Mark Hutchinson, notes that an outright ban is not the right approach and companies will now attempt to understand how to achieve the right balance between allowing employees personal usage time without jeopardising the bandwidth required for business applications.

However, a ban on Facebook proves to be less of an issue with employees aged 25 to 65, of which 16% would consider leaving a company.