Texting for free, phonies on Twitter and new national parks.

Available for over a year

How so-called "Twitter dealers" are helping businesses trick customers into thinking they're more popular than they really are. And how you can spot phonies on the internet. Why farmers are fighting plans to establish two new national parks in Northern Ireland - and what they and the government can learn from land owners in the South Downs. And how to send text messages for free - and who is trying to stop you. Presenter by Julian Worricker Produced by Paul Waters.