Whether you're doing demos, trying different aspects of applications or just looking for something new, you may want to have a broad and free selection of data to choose from. This post is here to help you out on that. I've collected a number of free data source for you to use: From the PowerPivot blog: Data on the District of Columbia http://ogdisdk.cloudapp.net/DataCatalog.aspx From Andrew Fryer 's blog: Data from the UK Government: http://data.gov.uk/data/ Datasets for neighborhoods...