Who is more likely to purchase: Twitter followers, FB friends or email subscribers ?

Those statistics from www.marketingcharts.com clearly show that Twitter followers are more responsive to a brand; 37% of respondents are more likely to make a purchase after becoming a follower on Twitter.
These numbers are not surprising. Twitter is a more open and constraint-free platform. Followers don’t have to commit to the brand, they genuinely Like a brand whereas Facebook and [...]