BBC NEWS | Election 2005 | Poll Tracker
As the drama of the UK election campaign unfold in the days and weeks prior to May 5th, the BBC Election Site gives the possibility of following how the different polls measure the support of the competing parties.
Two words of caution are necessary, however.
One is that the track record of opinion polls in predicting actual election results is less than stellar. Not the least the UK has seen some spectacular failures. But they are generally good in showing how the battle evolves during the course of a campaign - until it's the voters that make the decision.
Another is that the UK election system makes the translation of support in terms of percentage of the electorate to seats in the House of Commons much less direct than in any other system.
So the polls should be read with these rather major reservations in mind.