Income inequality in the United States of America

Here's the graph we viewed in class today, with some notes from the Paul Krugman lecture: http://www.marginalrevolution.com/marginalrevolution/2007/09/the-great-compr.html

Some interesting(loose use of the word)posts below the excerpt. There is also some fair criticism of Krugman's style and some assumptions.

Income inequality in Australia

The next couple entries will direct you to a range of organisations whose primary concern is finding solutions to the problems that inequality creates in our society.

ACOSS - www.acoss.org.au
The Brotherhood - www.bsl.org.au
St Vinnies - http://www.vinnies.org.au/UserFiles/File/NATIONAL/Social%20Justice/2005%20May%2029%20-%20The%20Reality%20of%20Income%20Inequality%20in%20Australia.pdf

What solutions do these organisations propose?