I did some browsing on the web and came across a few popular bi-racial websites and articles. Here they are:

MixedFolks.com 

http://www.nytimes.com/2008/03/31/us/politics/31race.html
http://www.sfgate.com/cgi-bin/article.cgi?file=/chronicle/archive/1999/11/28/SC84737.DTL
http://www.multiracial.com/site/
http://www.pbs.org/wgbh/pages/frontline/shows/jefferson/mixed/ http://www.mixedheritagecenter.org/

www.mavinmag.com
http://www.pbs.org/wgbh/pages/frontline/shows/secret/portraits/
http://en.wikipedia.org/wiki/Multiculturalism