Theodore P. Seto (Loyola-L.A.) has updated his monthly rankings of the Top 15 Graduate Tax Faculties, as measured by the number of SSRN downloads (through 6/1/07):

For purpose of Ted’s analysis, a tax professor is initially defined as any law professor at a U.S. law school (1) self-identifying with one of the tax categories in the AALS faculty listing, (2) who has posted at least one tax or tax-related article in abstract or full text on SSRN. Paul Caron’s listing of new hires and lateral transfers is also reflected. (Lateral transfers due to take effect July 2007 are not yet incorporated.) Further corrections are also made as requested. As is true of Paul Caron’s ranking of individual tax professors, downloads of all SSRN postings of any tax professor, so defined, are then tallied. This month’s tally for Michigan is boosted by the addition of Jim Hines.

For more on the use of SSRN downloads in law school rankings, see Bernard S. Black & Paul L. Caron, Ranking Law Schools: Using SSRN to Measure Scholarly Performance, 81 Ind. L.J. 83 (2006).