So this morning Joanna Shields, vice president of sales and business development at Facebook, announced Facebook has 30m users in the UK.

And while this number continues to grow – it was at 26m in the UK only 7 months ago. How about that for customer acquisition – 4 million in 7 months or roughly 20,000 users a day – businesses of all sizes and in all sectors are still asking themselves whether it is a good idea to get involved.