Web of Darkness by Bali Rai
When the incredibly attractive Benedict befriends Lily online, she is thrilled. He is so much more mature than boys her age and he seems to know exactly how she's feeling. She finds herself opening up to him, telling him things she wouldn't tell anybody else. And she needs someone to confide in more than ever before as a spate of apparent suicides rocks her school - and her group of friends. But is Benedict the kind, charming person that he seemed to be initially? Lily soon realises that now, with half our lives spent online, you can be found - even if you try to hide . . .