Gangs in New York talk Twitter: Use tweets to trash-talk rivals, plan fights

Some groups of teenagers in Harlem use the messaging website Twitter, via their mobile phones, to organize street fights and other shady activities. The city's street gangs are becoming tweet gangs.Manhattan's young thugs have turned to Twitter, and the cops who track them are fast behind, the Daily News has learned. It's old-school crime meets new technology: attacks being plotted - and thwarted