Redistricting
Redistricting is the process of creating or changing district boundaries for congress, for a state legislature or for local elected offices. I'm interested, especially, in congressional redistricting.
Every 10 years after the U.S. census is taken, the seats in the House of Representatives are reapportioned among the states based on population. After the 2010 census some states will lose seats and others will gain. Each state has its own process for drawing the boundaries; some are fairly non-partisan; others highly partisan.
Redistricting Blogging
Check out Swing State Project for a lot of good information on political races around the country. You can find a lot of diaries on redistricting, including many where people have used my redistricting app (see below). My Swing State page has the diaries I've written there.
I've written a little about congressional redistricting on my blog Daves Redistricting. I've referenced a number of other folks who have been talking about what's going on, including projections on which states will lose and which will gain seats. (This is mostly older than the postings on Swing State Project.)
Do Your Own Redistricting
I've created a free web application so you can create your own congressional districts. With this app you can select a state and the number of congressional districts and then create your districts by sweeping the mouse across the map. More on Daves Redistricting App.