This page provides some useful links to the competition (Political Parties) , General government sites and general information sites for you to research.
Political Parties
Labour Party: 
http://www.labour.org.uk
http://www.labour.org.ukConservative Party:http://www.conservatives.com
http://www.conservatives.comLiberal Democrates:http://www.libdems.org.uk
http://www.libdems.org.ukScottish National Party:http://www.snp.org
http://www.snp.orgParty of Wales (was Plaid Cymru): http://www.partyof.wales
http://www.partyof.walesReform party UK (was UKIP) https://www.reformparty.uk
https://www.reformparty.ukGeneral Government Sites with links to useful information
Prime Minister:http://number10.gov.uk
http://number10.gov.ukDirect Government: http://www.direct.gov.uk
http://www.direct.gov.ukParliament: http://www.parliament.uk
http://www.parliament.ukCabinet office: http://www.cabinetoffice.gov.uk
http://www.cabinetoffice.gov.ukMPs and Lords: https://www.members.parliament.uk
https://www.members.parliament.ukInformation Sites
The National Archives (was OPSI): http://nationalarchives.gov.uk
http://nationalarchives.gov.ukNational Audit Office: http://www.nao.org.uk
http://www.nao.org.ukCompanies House: http://www.companieshouse.gov.uk
http://www.companieshouse.gov.ukElectoral Commission: http://www.electoralcomission.org.uk
http://www.electoralcomission.org.ukThe boundary Committee: http://www.boundarycommissionforenglandandwales.independent.gov.uk
http://www.boundarycommissionforenglandandwales.independent.gov.uk