The majority of businesses have no formal plans to adopt social media or use its benefits that can lead to better customer relations and increased sales.Fear and apathy are the primary barriers to using social media, according to a global survey by Avanade, an IT consultancy company.Over half of respondents to the survey said senior executives and IT staff resist adoption out of fear it will reduce employee productivity. Sixty percent believe management does not understand the potential social media offers employees and customers.