Here are guidelines on covering suicides [PDF] from the American Association of Suicidology.
Some teen suicide facts taken from a 2007 report by the Centers for Disease Control and Prevention:
In 2004, suicide was the third-leading cause of death in the United States among youths and young adults 10 to 24 years old, accounting for 4,599 deaths.
For more than a decade (1990-2003) the suicide rate among people 10 to 24 years old dropped — down a stunning 28.5 percent.
But from 2003 to 2004, the rate increased by 8 percent. (2004 is the most recent year available.)
From 2003 to 2004, suicide rates shot up (CBSNews) for females between the ages of 10 and 14 and females aged 15 to 19, reversing an earlier trend.
source: Al’s Morning Meeting (Poynter)