Well, maybe you are right regarding GISWork.
The main idea behind is a variation of "guesswork", which
is closely related to GIS, as it gives sometimes surprising results,
when using different, seemingly unrelated layers.
However, GIS depends on different databases with zillions of data, which is I would say, even more important then maps. It just belongs there.
The other term closely tied to GIS is "map", but GISmap.com,
GISMaps.com and GISMapping.com is already taken, no surprises here.