Ipsos-Mori has the details here. This loss includes a particularly dramatic loss of support in the North East where the Liberal Democrats did well at taking support from Labour in the previous general election. Since the election, their support in the region has dropped from 24% to a new low of 4%. We are watching a major political party against the ropes.
P.S. You know times are bad when party leaders beg their own side to stick with the party through the national media. (Details here.)
Nor is disatisfaction one-sided: many Tories are apparently unhappy with the coalition leadership. (Details here.)