http://www.nytimes.com/interactive/2010/11/07/weekinreview/07marsh.html
http://pewresearch.org/pubs/1794/parsing-election-day-media-messages-varied-by-platform
http://www.gallup.com/poll/144350/Book-Tour-Begins-George-Bush-Favorable-Rating.aspx
http://gqrr.com/index.php?ID=2540
[PDF] http://www.publicpolicypolling.com/pdf/PPP_Release_CACOCTILNHPA_1109.pdf