By posting e-mail addresses on public sites as targets for each others' phishing e-mails, gangs of scammers are able to track each others' newest tricks and keep up with the latest innovations.

FORBES: Future Phishing

Adults know that a careless e-mail, text message, tweet or photo posting can cost someone not only their reputation, but also their career.

CNN: The secret life of my sixth grader

New York-based cyber lawyer Parry Aftab says that targeting an individual on the Internet - by sending nasty E-mail, leaving offensive messages in guestbooks or posting misinformation about them - constitutes harassment and stalking.

BBC: Cyberstalking: Pursued in cyber space