A slam book is a notebook (commonly the spiral-bound type) which is passed among children and teenagers. The keeper of the book starts by posing a question (which may be on any subject) and the book is then passed round for each contributor to fill in their own answer to the question.
Slam books were also a source of bullying between students - where students "lived in fear" of the "biting comments" written anonymously under their names, "on the order of what today might be a Tweet or a Facebook comment".
Slam books can also exist in virtual formats. Web-based slam book sites have attracted controversy for hosting virtual slam books in which individuals or organizations are targeted for criticism that constitutes bullying or defamation.
Web Based Slam books
Some of the virtual slambook websites are listed below