Here's an interesting graph on trends in interracial marriage 1980-2009. Interracial marriage rates for Asians and white Hispanic have been dropping over the last couple of decades as their communities grow more around them. It would have been helpful to break out figures for the large fraction of Hispanics who answer "Other" to the race question (e.g., darker mestizos tend to say that). It would also be helpful to have broken out Asians by native born and immigrant. Here's my 1997 classic Is Love Colorblind? It used 1990 Census data. Not all that much has changed since then.