Census data can provide valuable information, but the datasets are not always the easiest to access. So you often end up spending a lot of time getting your data in order before you actually get to do anything with it. Investigative Reporters and Editors has released the next phase in their Census project to make Census 2010 more accessible via a simple interface. Easily download data in bulk as CSV or shapefiles or build it into your applications with the API.
[census.ire.org via @bryanboyer]