Also, another redistricting-related announcement.  PDFs, ESRI shapefiles, and Google maps of all of the new federal and state redistricting lines, along with links to state pages with more data about the new districts, are now available here.  (All, that is, except the states that aren’t yet done, and Rhode Island, which hasn’t yet made shapefiles publicly available.)  For those looking to do research on the new lines before the Census turns around new data products, this collection of files should help.