Conservative candidate for 2016 London Mayoral Election. A similar system with a similar Mosaic-based demographic model was used by Britain Stronger in Europe during the 2016 EU referendum. From 2009 to the end of 2014 the Conservative Party used a system called MERLIN (Managing Elector Relationships through Local Information Networks) which was a national database accessible by every local Conservative Association in the country. This was commissioned in 2005, and went live in 2008. From the mid-1990s to 2009 the Conservative Party used a programme called BlueChip which was a programme held on individual Conservative Association computers. BlueChip was not a nationally centralised database and it relied entirely on local activists maintaining it and updating it. For the 2005 General Election the party incorporated a national model called Voter Vault into the BlueChip system for the first time to direct canvassers towards voters based on demographics. Britain's Labour Party has used a variety of voter databases through the past two decades. Its most recent incarnation is the Labour Contact Creator system, an online tool accessible from anywhere with an internet connection. Party members and activists are provided with a username and password and voter contact details, preferences, interests, past voting behaviour, and demographic/socio-economic information are available. The system allows voters to be selected on the basis of a MOSAIC grouping, which attempts to determine the sort of interests and activities a voter or a household might display. Maps of where key voters live and information can be cross-referenced so users can find where target voters live, how often they are contacted, how they prefer to be contacted, and what responses have been provided upon making contact. The Contact Creator system is also linked with the Labour Party's other new media tools, Print Creator and Email Creator. Print Creator allows key voters identified through Contact Creator to be targeted with direct mails and leaflets about Labour Party activity. Email Creator allows the user to collect a list of email addresses on the Contact Creator system, e-mail thousands of voters, and monitor the response rate from targets. The Labour Party also operates 'Membersnet', which allows party members to update their registration details, inform other members and Party HQ of rival campaign activities, create events and invite others to attend, email members, create blogs, and share best practice campaign material. The Labour Party introduced a new system to Membersnet and Contact Creator in