PinkNews.co.uk is inviting readers to take part in our second Mayor of London poll.

Today is the start of the official campaigning period for the election. Londoners will go to the polls on May 1st.

Incumbent Ken Livingstone is running as the Labour candidate.

Henley MP Boris Johnson is the Conservative party hopeful, while former Met police Deputy Assistant Commissioner Brian Paddick is standing for the Liberal Democrats.

There are many other candidates putting themselves forward too.

Sian Berry is hoping for a good result as the Green candidate, Gerard Batten MEP is standing for the UK Independence party, Lindsey German is the Respect candidate and the Christian People’s Alliance have high hopes for Alan Craig.

For a full list of candidates for Mayor of London click here. Nominations close on 28th March.

Only readers who live in London are eligible to ‘vote’ in the PinkNews.co.uk poll.

The Mayor of London is elected by the Supplementary Vote (SV) system, meaning voters may choose a first and second choice candidate.

If no candidate receives more than half of the first choice votes, the two candidates with the most first choice votes go through to a second stage.

In a close race, second preferences will decide who will be Mayor.

Elections for the 25-member London Assembly will also take place on May 1st. For more information on the elections visit the London Elects website.

To take part in the poll click here.

The poll will close at noon on 23rd March.

Gay equality organisation Stonewall is hosting a hustings event with the candidates for Mayor of London on Saturday 19th April, the last such event before Londoners go to the polls on May 1st.

Mr Livingstone, Mr Paddick, Mr Johnson and Ms Berry will be taking part.

The Stonewall hustings will be held on Saturday 19th April between 11am and 12.30pm at the BFI Southbank, London.

PinkNews.co.uk is proud to be a media sponsor for this event, which is open to everyone.

In order to ensure a seat you must register here.