Via Reuters comes this latest from YouGov/The Sun:

The opposition Labour Party has a one percentage point lead over Prime Minister David Cameron's Conservatives, according to a YouGov poll for The Sun newspaper

  • Labour on 35 percent (unchanged from the day before
  • Conservatives on 34 percent (up one)
  • UK Independence Party 13 percent
  • Liberal Democrats 8 percent
  • Greens 5 percent
  • People fed up with pollies and polls 100%

There's also this, via Britain Elects (@britainelects):

What a chart ... OK, technical analysts - let's hear from ya!