Classed Choropleth Map

http://lib.westfield.ma.edu/censusaff.htm

A classed choropleth map is a thematic map where coloring or shading are used to the measurement of a statistical variable(s) being displayed on a map.  In this classed choropleth map, shading is used based on median age.

Lorenz Curve Graph Map

http://www.unc.edu/depts/econ/byrns_web/Economicae/Figures/Lorenz.htm

Here is an example of a Lorenz Curve graph, which is created by plotting the cumulative distribution of a variable against its' frequency.  They are used a lot in economic studies to show distribution and inequality in wealth or income.

Bilateral Graph Map

http://www.theatlantic.com/international/archive/2010/10/china-and-international-rules-self-interested-or-malign/64747/
A bilateral graph shows two more data sets within the same graph.  Here is an example of such which shows trade statistics between the U.S. and China.

Population Profile Map

http://www.ifad.org/operations/regional/pf/aids_1.htm
A population profile shows the number of individuals within an area (population) as a function of their ages.  Here is an example of such, showing the projected number of individuals with and without AIDS in Botswana, Africa by 2020.

Scatterplot Map

http://www.stat.yale.edu/Courses/1997-98/101/scatter.htm
A scatterplot is graphical representation which uses the Cartesian coordinate system to show two sets of variables.  Here is an example of such showing the size of diamonds in carats and their price.

Index Value Plot Map

http://envstudies.brown.edu/oldsite/Web/special%20reports/Classes/ES201/2000/Drought%20Management/D%20-%20Indicators/indices%20with%20data/PDI/index%20value%20graph.html
An index value plot is a type of visualization map where an index value (not absolute value) is plotted on a line graph.  This is used a lot within the stock market, to show the drop or rise of a stock or investment.

Correlation Matrix Map

http://www.psychstat.missouristate.edu/multibook/mlt06m.html
A correlation matrix is a way to show the relationship(s) between data sets.  Here is an example of such, which shows the success of students in graduate school based on multiple data and variables (intellectual ability, work ethic etc).