UK national newspapers that support Labour:
The Guardian, The Mirror (Daily Record in Scotland), The Observer, The Sunday Mirror.
UK national newspapers that support the Tories:
The Times, The Daily Telegraph, The Sun, The Daily Mail, The Daily Express, The Sunday Times, The Sunday Telegraph, The News of the World, The Mail On Sunday, The Sunday Express.
UK national newspapers that are relatively politically neutral:
The Independent, The Star, The Independent on Sunday.
UK media outlets which are owned by Rupert Murdoch who held a meeting* with David Cameron and offered him his support:
The Tiimes, The Sunday Times, The Sun, The News of the Word, Sky Television (including Sky News).
*
Cameron, Murdoch and a Greek island freebie - UK Politics, UK - The Independent
Lo and behold, look what happened the following year!
Read more:
The Sun and David Cameron demand early general election | The Sun |News
Brown fumes at Murdoch's sabotage of his big moment - UK Politics, UK - The Independent