Here is an interesting link from real-time economics showing that only those with advanced degrees saw their incomes rise more quickly than inflation over the last decade (based on census data).
This story is from 9/11 AOL's Daily Finance) and considers how the economy has changed since 2001 including comments from different economists.
The IMF just came out with its latest global forecast. Within the report is a chart that shows the change in jobs based on pay (lower third, middle third and top third from 1993-2006) for different countries. All countries show the same trend: significant declines in the middle with most showing increases in the top and bottom.