The impact of a paywall on traffic and traffic growth is always a concern but word from The New York Times is that their number of unique visitors has actually grown 2.3% year-on-year since they digital subscriptions were introduced in March.According to Journalism.co.uk, “Speaking on a paywalls panel at the World Editors Forum in Vienna, Jim Roberts, assistant managing editor for digital, said the year-on-year increase to an average 34 million unique users in September per month was ‘incredibly surprising’, admitting that at first he thought the paywall was ‘at least potentially a bad idea.'””We have experienced a drop in page view numbers oversees but very little decline domestically. And what was incredibly surprising to me was that our uniques have actually grown,” Roberts said. “In September of 2010 versus 2011 there was a 2.3 per cent increase to a total number of 34 million of US uniques.“