This article entitled "Why Teachers need Digital Citizenship" by Suzie Nestico details how a Facebook imposter profile was created in her name, how she went about dealing with it and the lessons that she (and all of us) can learn from incidents like these. 

The article is pretty positive about the technology, and clear in terms of her rationale for using the technology to engage with students with her "bottom line"

"you can't teach them if you can't reach them"

Some good insights into the valuable role of the guide, and the importance of not just being technologically aware, but able to recognise both opportunity and challenge in the online space.