Online hate speech: Difficult to police ... and define - USATODAY.com

NEW YORK — As the real world grows more tolerant of differences, the virtual world grows with hatred.

Complaints against groups on social networking sites that call for threats, violence and hatred toward people who are Jewish, black, gay or have disabilities are on the rise even as Americans celebrate the 19th anniversary of the Americans with Disabilities Act, the country rallies around its first black president, and gay marriage is legalized in some states...