I am not sure on the terms for this, maybe cyber abuse, but it is an import inssue. Especially for teenagers , who are more often than not attached, almost literally, to their technology. There’s a site I ran across that covers these potential problems pretty well, “That’s Not Cool“.
They have some cute little videos that deal with issues like facebook stalking your significant other, pestering someone for texts of naked pictures and constantly texting the other person. The videos are kind of silly, but they display the issues in a very clear cut way. For issues like these, that is all you need, since the solution for most of the issues are tell the person you need your space or something similar. The site also has some links to outside videos and those are very interesting. The site seems like a really good resource and a good place for people in those situations can go to for the first steps towards setting their boundaries effectively.