According to February 2012 data from Ipsos, 89% of internet users in Great Britain accessed email in the three months prior to the survey. And SkyIQ found that 66% of UK B2C marketers used email as of September 2011.
In order to retain subscribers, however, marketers have to keep their email campaigns sharp. A September 2011 survey of UK internet users by ExactTarget found that the top reason people unsubscribed from an email list was that they felt bombarded with messages. On the other end, only 3% unsubscribed because they didn’t receive enough promotional email. Read the rest at eMarketer.