Labour lose the manual workers
In the Telegraph YouGov sum all their polls since January (via Anthony Wells, and read that and the comments for potential problems with this technique) to come up with a snapshot of the electorate before the election compared with last time. The change in voting intention by 'social class' caught my eye.
According to this Labour is doing better (relative to the Conservatives) among 'non manual' workers than it was in 2001. making a swing to Labour of 1%. Amongst 'manual workers' however it has lost a whopping 13% points, the Tories have gained 3% making an 8% swing.
It's scarcely believeable actually, and it should be noted that ICM polls show a rather different story. But if YouGov are right then essentially a large chunk of the Labour manual worker voter has switched to the Lib Dems, with a smaller number going to the Conservatives.