At risk of using only one source:

Today the Atlantic has just published a supremely well timed article:

http://www.theatlantic.com/politics/archive/2014/08/against-consensus/375684/


With a second, slightly older, but also useful related article:

http://www.theatlantic.com/politics/archive/2014/06/the-left-right-political-spectrum-is-bogus/373139/