State Police said they received a complaint that Mark Laber, 48, of Grayson, who is a registered sex offender, owned and operated a Facebook.com account under his name.
Investigators said they determined Laber was operating a Facebook.com social network account.
On Thursday, Laber was arrested and charged with Sex Offender IM/Chat/Social Network Use.
He was lodged in the Carter County Detention Center.
The case is still under investigation.