Guardian/ICM polls: every one since 1984

Vote mapping analysis shows the Lib Dems are increasingly voting with the Conservatives at Westminster. See how things have changed

The opinion polls are in - but how accurate are they?

Now the election is over, the Electoral Commission has published the big party donations of the campaign. Find out who gave what to whom

Every constituency, the party targeting the seat - and the swing they need to win it

Want to know how well the BNP did near you? Or where the swing against Labour was greatest? This is what you can do with the data

Andrew Sparrow: Analysis of aggregated polling data for last year shows that the Tories seem to be doing better in battleground seats than across the country as a whole

As the UK goes to the polls, these are the top 5 constituency-level datasets. See how yours compares

Andrew Sparrow covers all the latest general election news and events, including David Cameron and Nick Clegg holding press conferences and Gordon Brown on the campaign trail.

Andrew Sparrow covers the latest general election news and events, including Gordon Brown, David Cameron and Nick Clegg on the campaign trail.