Transit Map

http://www.geekologie.com/2007/08/web-trends-transit-map.php

A Transit Map is a topographic map that shows the  routes and stations within a public transport system.  This particular Transit Map is a Web Trend Map made by Internet Architects in Japan.The different colors in this map represent different site categories.

Pictorial Maps

http://www.georgeglazer.com/maps/pictorialmap/gar-boston.html

A Pictorial Map is a map that depicts an area in more of an artistic fashion. This maps typically are shown above at an oblique angle. This particular map is a pictorial map of Boston, Massachusetts.

Dymaxion map

http://www.genekeyes.com/FULLER/BF-7-Internet.html

A Dymaxion map is a  map projection onto the surface of a icosahedron. An Icosahedron is a polyhedron with 20 equilateral triangles. This map makes the world look like one island as opposed to multiple continents. 

Reversed Map

http://www.upside-down-maps.com/about.html

A Reversed Map is a map that portrays the south is up and the north is down. Technically these maps are just as accurate as any other map, because placing the north as up is an arbitrary act. These maps are used as to illustrate the bias of the Northern Hemisphere being the top of the world.

DLG

www.ga.water.usgs.gov/olympics/athens.html

DLG mapping is a cartographic map represented in digital vector form that is distributed by the U.S. Geological Survey. Digital Line Graphs are formatted to work with GIS technology and mapping applications.  This particular map is of Athens Georgia. 

DRG

http://lter.kbs.msu.edu/data/gis-data/

Digital raster graphic (DRG) is a digital image resulting from scanning a paper of a topographic map for use on a computer.  DRG maps are primarily used with GIS technology.  This particular map shows the topography of Michigan.

Isopleths

http://www.cbr.washington.edu/papers/jim/draft.html

An Isopleth map uses lines joining points of an equal value to show variations in that value. This particular map portrays wind velocity by month around the Columbia River. This Map is considered an Isopleth because it has lines joining the points of equal value though out the months.