domain GreExam.net

[hartwm]

Roughly 500000 people take the GRE each year (graduate school admission test) and 1.1 million take GMAT

GreExam.net
SampleGre.com
GreTestCenter(s).com

GmatTutorial(s).com
GmatPraticeExam(s).com
GmatInstruction.com
GmatTestCenter(s).com

 

[hrethel]

The main problem that you're going to have is that both "GRE" and "GMAT" are registered TMs of their respective companies. In my non-lawyerly opinion, you might run into trouble with these domains (especially all of the GRE ones and most of the GMAT ones, since they look like they should be official sites), and I probably wouldn't go anywhere near them.