In teaching, our focus needs to be on the verbs, which don't change very much, and NOT on the nouns (i.e. the technologies) which change rapidly and which are only a means. For teachers to fixate on any particular noun as the "best" way (be it books or blogs, for example) is not good for our students, as new and better nouns will shortly emerge and will continue to emerge over the course of their lifetimes. Our teaching should instead focus on the verbs (i.e. skills) students need to master, making it clear to the students (and to the teachers) that there are many tools learners can use to practice and apply them.