With under two weeks to go to the 2015 UK general election, there's no better time to take stock of all the voter intention polls being published by the British media. The data has already been aggregated by UKpollingreport—a site I've used before for analysis of the Scottish independence referendum—and there's not much more to be said then is already widely known: it's likely no single party will win an outright majority and we'll be left with a coalition or minority government.
Living in Edinburgh it's been hard to avoid the build-up to Scotland's referendum on independence. On September 18th 2014, less than a month away as I write this, people living in Scotland will go to the polls to answer the question: Should Scotland be an independent country?
The Guardian newspaper has for a few years been running a data blog and has built up a massive repository of (often) well-curated datasets on a huge number of topics. They even have an indexed list of all data sets they've put together or reused in their articles.
It's a great repository of interesting data for exploratory analysis, and there's a low barrier to entry in terms of getting the data into a useful form. Here's an example using UK election polling data collected over the last thirty years.