Found at XKCD

G-Spot: Does it exist?
The quest of the holy G-Spot.

A new study went on the quest of finding a definitive answer to the burning question -- "Does the G-spot really exist"?

In one of the largest of G-Spot studies to date, 1,800 women twins were asked to participate. The assumption was that if one twin reported having a G-spot, then the other (identical) twin with the same genes should also be reporting the experience of a G-spot.

The researchers from King's College London found no such pattern, however. One twin was no more likely to report having the same experience as her sister than ordinary sisters would.

Based on this information, the researchers claimed that, "There is no physiological basis for the orgasmic epicenter known as the G-spot—and if a woman claims to have one, it's only because she thinks she does."  Tim

However, some women may simply not know what the term itself means; or, they may not know how most effectively to stimulate it. 
 
The preeminent researcher and author of The G-Spot, Beverley Whipple’s comment on the study was that it was flawed. “The easiest way to stimulate the G-spot is by using two fingers inserted into the vagina with a come-hither motion, but the researchers eliminated bisexual or lesbian women, who are the ones most often using digital stimulation.”

The most recent study (2008) by Italian researchers claimed that they had figured out how to locate the G-spot through using ultrasound scans.

What do we here at Libida know?

That there is a very sensitive spot in many (but not all) women, about 1 1/2 inches square, on the anterior (top) side of the vagina that is related to clitoral tissue (clitoral sponge surrounding the urethra).  What name this is given or what physiological process it uses is irrelevant to most women.  “A rose by any other name still smells as sweet”, says Shakespeare.

Like any sexual spot, this one  if stimulated, arouses some and not others. Most of us here agree that the issue of the G-Spot is pretty simple -- look for it, and if you touch that area and don't feel any difference, or if you don't like the way it feels when you touch it, then move on to other things you do like!

The problem with saying the G-spot is a myth is that it negates those women who do know their own body and know what it feels like there. Therefore, if you find it and you like the way it feels, enjoy!

More Link for the G-Spot:

Tell us what you think.  G-Spot Poll
The Tools for finding the G-Spot.  G-Spot Vibrators

How to: Find the G-Spot