GMAT Reading Comprehension Tests
GMAT Sentence Correction Tests
GMAT Critical Reasoning Tests
GMAT Quant Tests
GMAT Official Guide Tests
When is GMAT held???
All-round-the-year. Unlike other exams, one can choose his own date and time for taking the GMAT! The test is administered in different cities five-days-a-week (Monday through Friday), twice-a-day. September to December is the high season for GMAT, so in case one intends to take the test during this period, it is needed to register very early (say 90 days in advance) to get a date of choice. Otherwise, registering at least 15 days in advance is mandatory. The GMAT test lasts roughly four hours, and most centers offer two slots : 9 A.M. and 2 P.M.
http://www.infozee.com/tests/gmat/about-gmat.htm
http://www.gmac.com/GMAT
http://en.wikipedia.org/wiki/Graduate_Management_Admission_Test
http://www.mba.com/mba/TaketheGMAT
http://www.mba.com/
http://www.princetonreview.com/business/gmat-information.aspx
http://www.west.net/~stewart/gmat/gm101_1.htm
http://www.testprepreview.com/gmat_practice.htm