I bought this book despite the comments made by the reader from SÃO PAULO, and therefore had some hesitations in using it in my classrooms. However, I found the book to be incredibly informative and chock full of useful and practical ideas that can be easy implemented into the classroom. It is written in such a clear way that there's no need to have any in depth internet knoweledge at all. A god send for the likes of me. I would recommend this book withput hesitation to any teacher wanting to utilise the capabilities of using the internet in the classroom. I'm not sure what problems are friend in Brazil encountered, but I had no trouble at all. All of the pages listed in the book led to straight to the sites they were supposed to. I have already started an email exchange with another school. I'm not sure what problems are friend in Brazil encountered, but I had no trouble at all.