WashingtonWatch.com, run by our colleague and frequent collaborator Jim Harper, announced yesterday that they’ve added new data for bills’ projected cost, through information provided by the National Taxpayers Union Foundation.

The promise of legislation tracking websites comes, in part, from the idea that data created through analysis, commentary, or official sources, should be easy to combine with up-to-date legislative sources, to inform our national debate. It’s thrilling to watch a whole host of websites attack the problem of illuminating congressional bills from a variety of approaches, each adding new pieces of context and information. Check out what WashingtonWatch is up to.