In today's NY times there is a profile about Ramona Hernández from the Dominican Studies Institute at the City University of New York.
http://www.nytimes.com/2004/12/28/ny...28profile.html
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What I found interesting, is the statement that Dominican's cling to their identity in a way that other groups do not. Here is a short quote: "A 2003 analysis by the institute said, for instance, that if current trends continue, Dominicans will outnumber Puerto Ricans in the city by the end of the decade. The Dominican population surged 51 percent in the 1990's, to 554,638, while the number of Puerto Ricans fell 12.8 percent, to 789,172, Dr. Hernández said in a study written with a Columbia University researcher, Francisco L. Rivera-Batiz.
Dominicans from Manhattan to the Bronx are clinging to their identity in a way, she said, that other Latino groups are not."