The Ask.fm website has been linked to two bullying cases that led to suicides. Danny E. Martindale/Getty Images hide caption

itoggle caption Danny E. Martindale/Getty Images

Cyberbullies can reach victims around the clock – before school, during school, even while lying in bed at night. And in public online spaces, everybody else finds out about it. iStockphoto.com hide caption

itoggle caption iStockphoto.com