The document discusses changes in the English language and technologies used for teaching English. It notes how computers and corpora have changed dictionary making by providing large datasets of real language. New words like "blog" and "podcast" have emerged for new technologies. The meaning of words like "web" and "site" have shifted based on evidence from corpora. Classroom technologies have advanced from blackboards to include computers, internet access, and interactive whiteboards. Overall, the core English vocabulary remains stable while teaching tools and student expectations continue to evolve.