I find this interactive graphic from the New York Times, though not new, to be very interesting.
It shows where the top 1% are occupied. It is interesting because the 1% is really spread out a lot. Of course if you are a lawyer or doctor or work with financial securities, you stand a good chance of being rich.
I find that discussion of income and taxes to be oddly affected by individual's perceptions about the rich. Either we have a strong feeling about it, because we feel that some people are earning more than is fair, or maybe we are against some policy, such as the estate tax, because we think that that tax will impact us personally, even though we are not likely to be in that category. I think that I flip flop in my own thinking about this often.