General Election 2015: Keeping track of the campaigns

This year's general election is expected to be one of the closest fought for many years.

What used to be a three-party race, between Conservatives, Labour and the Lib Dem, has widened. Polls show a surge of support for UKIP, the Greens and the SNP.

In this interactive video, BBC political correspondent Vicki Young explains how you can keep up to date with the latest party campaigns.

If you are unable to watch, below is a transcript of the interactive video with links to other content.

This year's general election could be one of the closest for decades. A few brave political pundits have given their predictions but not with any certainty.

After five years of a coalition government, a referendum on Scottish independence and the rise of parties like UKIP and the Greens, the political scene is looking pretty crowded.

So how are the parties placed right now? In this video you can come with me inside our virtual reality House of Commons to find out.

I even get to take a seat on the famous green benches, which is strictly against the rules in the real one.

For a bit more detail on what the new Parliament might look like on the morning after the election on 7 May, listen to Peter Kellner, the boss of YouGov, one of the biggest political polling companies.

His is just one of a whole industry of political polling companies who are trying to gaze into their crystal balls by asking people how they might vote.

The results these pollsters get from their research can help you keep up with the way the wind is blowing.

For instance, take a look at the website run by Conservative peer Lord Ashcroft who focuses on what might happen in individual constituencies.

Others worth keeping an eye on include Ipsos Mori and Populus. Their websites will give you a view of historical political trends and up-to-date voting patterns as the election campaign unfolds.

And, of course, the rise of social media in politics has been huge. All of the main parties will be spending loads of cash getting their message out on Facebook and Twitter. You'll be able to find them all easily on there.

The election result is looking so close that even once the votes are counted, it might not be clear for some time who will walk through the famous door of No 10 Downing Street as the next prime minister.

You can keep an eye on every development on the BBC's Live Politics page.