ooh, interesting. Some names have true cross-racial appeal and others seem to have a more specific demographic.

Sophia, Chloe, Emma and Oliva seem to have broad appeal.

A baby Tiffany or Ashley is more likely to be Asian or Hispanic. and it's interesting that names like Madison and London are so much more popular in that black community. I wonder why?

I think you are totally right about the Jewish influence on white names- see Esther, Chaya and Chana.

and for boys Old school Biblical names seem to be the great crossover, although with slight variations on the names.

Minty, the data do go further than the top ten.  http://www.nyc.gov/html/doh/html/vs/vs-baby-names.shtml  At the moment the 2010 pdf is the most recent listed, but I assume the 2011 results will be up soon. 

Six of the top eleven "white" girls name are either commonly (Esther, Leah, Sarah, Rachel) or exclusively (Chaya, Chana) used in the Jewish community.  Their presence in the top eleven is due to (a) the large percentage of white New Yorkers who are Jewish, (b) the enormous birth rate of the ultra-orthodox Jewish communities in Brooklyn (average family six to eight children and ten-twelve not unusual, (c) the ultra-orthodox no longer bothering to give children "civil" names, and only using traditional Jewish names which thus appear on the birth certificates, and (d) the limited number of traditional and acceptable Jewish names to choose from.  You can see this in the "white" boys' names: eight of the top ten are traditional Jewish names.  Moshe would be used primarily by the ultra-orthodox while the others would be used by Jews from all levels of religious observance., as well as by families of other backgrounds. Oddly, Alexander is an acceptable traditonal Jewish name--there are a few traditional Jewish names of Greek origin whose usage dates back to the Hellenistic period.

As to why the "white" top ten names, heavily influenced by Jewish naming practices, do not dominate the overall lists (particularly in the girls' column), well, NYC is very diverse, and there is a large non-white and non-Jewish population.  BTW seven of the top ten "black" male names are also heavily used in the Jewish community, although the ultra-orthodox would spell Joshua as Yehoshuah and Elijah as Eliyahu and so forth.  Ethan is used among the Modern Orthodox (who may spell it Eitan), as well as the more liberal streams and the non-observant, but not the ultra-orthodox.