Facebook 'abuse' woman welcomes arrest of man
24 August 2012 Last updated at 20:24 BST
A woman from Sussex who is spearheading a campaign against online bullying said the arrest of a man was a "significant breakthrough".
Nicola Brookes told police her account and emails were hacked after writing in support of singer Frankie Cocozza on Facebook.
In June, a High Court judge ordered Facebook to reveal the IP addresses of those alleged to have hounded her.
A 32-year-old from Birmingham was arrested and later bailed.