It's structured in a way that gives an easy entry to data. For people who haven't looked at it yet, you've essentially picked a couple dozen providers of economic data, in a handful of major topic areas (housing, health care, taxes, prices, spending and jobs), then provided some basic background information about what purpose the data serves, and provided links to go straight to it. I particularly like the "Good to know" feature that adds helpful context/tips and pitfalls.

Were you able to survey what other aggregators were available, to see what specific need you could fulfill? Who did you imagine your primary "customer" would be?