The IRS has unveiled a Prototype Tax Stats Table Wizard.  From yesterday’s announcement:

For the next 4 months, Statistics of Income will be testing the prototype SOI Table Wizard. This tool will allow users to create their own custom tables from SOI tabulated data. This prototype uses data from the 1999 and 2000 Corporate Source Books, but, if adopted, data from other forms may be added. In addition, the prototype features redesigned navigation for presenting published Corporation Source Book tables and examples of metadata that can be used to better understand the information presented in the tables.