The Evangelical alliance has put together a hub for all things election related. This is a really helpful resource, looking at why we should vote, how to register and why as Christians we should show up. It also contains links to the political parties and how to organise a hustings. http://election2015.eauk.org/
You can also find information about Show Up Sunday, 25 January where churches across the UK are being asked to get on-board with Show Up and take a few minutes to play the Show Up video and talk about why it's important for Christians to vote in the upcoming election and participate in the political process. For more information about #Show Up you can also check out http://www.christiansontheleft.org.uk/show_up_a_sneak_peak on the Christians on the left website.