So even if you can spot that a referral has come via Tweetdeck, you have no idea whether the user clicked on a linkfrom their Twitter stream, or via Facebook, LinkedIn, etc.
This also translates into rising sales for things like organic milk, to the extent that French organic dairies are having to buy the stuff in from Britain, according to Le Figaro (no link).
Ahead of the podcast - which No 10 had suggested would be published on Monday - Mr Brown used a video linkfrom his Kirkcaldy constituency to tell a gathering of UK Copenhagen campaigners that he and Mr Miliband wanted the UN process reformed.
In recent years a large number of studies from over a dozen countries have been published showing no evidence of a detectable link between cell phone use and brain tumors.
Despite the fall, Katri Linkfrom Ecclesiastical Insurance said it was still "hugely depressing" that metal thieves had no respect or regard for sacred buildings.