Publishing has never been easier. Instead of being tied to pre-set textbooks many teachers are writing the course literature themselves and then publishing it for free and in many cases making it available for reuse, adaptation or translation. Last weekend (28 – 30 September) there was the much-publicized online collaboration project between a group of Finnish teachers to write a new school mathematics text book (see article in Edudemic: Finnish Teachers Are Writing An Entire Math Textbook This Weekend). This type of production highlights the power of social media in education where virtual teams of teachers and students can produce a new book without needing to meet in person. Of course they must have had plenty of material and ideas up their sleeves but the process must have been inspiring. More will undoubtedly follow.