I tried reading the site you linked to NA, but I found most of it to be reactionary and misinformed.
The studies they mention have very small test groups. A "survey of 35" or a voluntary survey which only 139 women actually responded to (from
here which was referenced on the page NA linked to) is not compelling.
I also tried to read the
"Jewish Circumcision" section of this site and thought it was interesting how all religious people pick and choose which part of the old text they want to follow. I do the same thing, as there is plenty in the Torah that I don't believe in, but to claim in the same breath that "Circumcision is not universal among Jews" and "A male born of a Jewish mother is a Jew, whether he is circumcised or not" is kind of silly. Obviously, the concept of being a "Jew" is up for debate, and stating "facts" like these is odd.
There are plenty of sites out there pro and con, and plenty of studies, pro and con. For instance, here's one that says that
circumcision may reduce HIV risk by 70% (not conclusive, other studies underway). There are plenty of studies cited by various "academies" or "family" or "parent" groups for both sides. Some say it actually prevent penile cancer, some say it prevents cervical cancer in women, some say that it really doesn't do either, and from what I've read today it becomes obvious that this has more to do with hygeine. In the end it seems to me that all of it is a wash (get it, wash?) and that it helps/hinders both ways enough that the scientific side doesn't come into play.
I do not believe that it causes more harm than not getting it done, if it's done correctly.
And I further contend, IMHO, that any man who feels like he's missing something because he was circumcised at 8 days probably has the same self-esteem issues as a small breasted woman who gets silicone shoved under her skin. Grass is always greener.