From Fourmilab in Switzerland. Just for starters, "you can view
either a map of the Earth showing the day and night regions at this
moment, or view the Earth from the Sun, the Moon, the night side of the
Earth, above any location on the planet specified by latitude,
longitude and altitude, from a satellite in Earth orbit, or above
various cities around the globe."
You can download many simple reference maps published by the CIA.
Peters Projection (call numbers below)
This is a world map that uses a much publicized equal-area
projection to heighten awareness about how the choice of map
projections can affect or be affected by one's view of the world. This
projection, however, was not devised in 1974 by Arno Peters as he
claimed but was first published in the 19th century by James
Gall, called Gall's Orthographic Equal-Area Projection. Even then, it
wasn't the first nor is it the most visually appealing projection that
maintains correct area relationships. See article by Jeremy Crampton
in Cartographica, 31(4), pp. 16-32, for a longer discussion, or the discussion by Matt Rosenberg at About.com.
The Map Collection has copies of the map at Oversize G3201 .B72 1984 .O9 (laying on top of the cabinets of the "G" schedule), as well as an atlas at Map Coll. Ref. Oversize 912 P481, P481, 1990.
A color-coded map shows current traffic speeds on freeways in
Houston. Freeway segments are clickable to get more exact data on
traffic speed, or you can go to detailed data report tables with speed
information for different segments.