HAVERTOWN, Pa. (CBS) - A Missouri woman whose teenaged daughter hanged herself after being bullied online is in the Delaware Valley tonight to speak of the dangers of cyberbullying.

Tina Meier’s 13-year-old daughter Megan committed suicide in 2006, after what she believed was an online relationship with a boy turned out to be orchestrated by an adult a few doors down.

Tina Meier (above) travels the country now, telling parents how to protect their children from online bullies.

“The overall feeling that I get from parents is complete helplessness,” she told KYW Newsradio. “They see their children coming home, and they see each day a part of them peeled away.”

Meier recommends establishing ground rules for using computers, using stricter privacy settings for sites like Facebook, and stressing that any picture or comment posted online is out there on the ‘net forever.

Meier holds a 7 PM session tonight for parents at Haverford High, and she’ll speak to students tomorrow.

For more information, go to meganmeierfoundation.org or  www.cybersafephilly.com.

Reported by Mike DeNardo, KYW Newsradio 1060.