How building trust in communities builds happiness too

I've been listening to a lecture on happiness (given by Ratnaguna at the Manchester Buddhist Centre and available from itunes as a free podcast).
What was of greatest interest was the indication of research (that I haven't yet fully sourced; links welcome please) showing the methodology for measuring the level of trust in UK society and the corresponding levels of trust. The happiness lecture starts from Lord Leyard's well publicisied work and then goes to the sources from Selegman and from the author of 'Flow'. The trust/happiness relationship is the one I'm keenest to follow at present:
"It is Layard's contention that, during the past 50 years, consumer society has become dominant and yet happiness has declined. We are richer, healthier, have better homes, cars, food and holidays than we did half a century ago. Unemployment and inflation are low, and yet so are levels of reported happiness. This is due, he says, to a series of things - the break-up of the family, fractured communities, a loss of trust. "The same thing has happened in America, but it hasn't happened in the same way on the continent. I think this shows we are suffering from the extreme individualism that we have reported from America. We are unhappier as a resultLayard talks in simple ways about these problems. "People would be happier if there were nice people when they went outside. But there is little confidence that there are nice people out there. Here and in the US levels of trust have fallen from 60% to 30% in the past 50 years." (From article about the government's happiness tsar)

Will freelender.org be clearly able to demonstrate the increase in trust and happiness achieved over the next five years? (Within certain neighbourhoods, I reckon so).