Oregon’s 2011 Redistricting: Successes, Concerns, and Recommended Improvement (Press Release) – Common Cause Oregon report in 2012 on the 2011 process.
Oregon Legislature’s 2011 Redistricting Page – Official State Legislature page.
A Citizen’s Guide to Redistricting – An excellent introduction to redistricting throughout the country. Simply the best holistic guide to redistricting available.
CGP Grey Explains Redistricting in 5.5 minutes – A YouTube video on Gerrymandering (the abuse of redistricting to favor one outcome)
The Redistricting Game – A fun interactive game where you can try your hand at redistricting in fake scenarios to produce the results your character wants