The Los Angeles federal court jury rejected felony charges of accessing a computer without authorization to inflict emotional distress on young Megan Meier.
However, the jury found defendant Lori Drew guilty of three counts of the lesser offense of accessing a computer without authorization. Each count is punishable by up to one year in prison and a $100,000 fine.
The jurors could not reach a verdict on a conspiracy count, and U.S. District Court Judge George Wu declared a mistrial on the charge. It was not known if she would be retried.
She could have been sentenced to a total of 20 years in prison if convicted of the four original counts.
Prosecutors said Drew violated the MySpace terms of service by conspiring with her young daughter and a business assistant to create a fictitious profile of a teen boy on the MySpace social networking site to harass Megan.
Megan, who had been treated for depression, hanged herself with a belt in her bedroom closet in 2006 after receiving a message saying the world would be better without her.