There are countless internet sites that call themselves "grammars" of a certain language. Many of these online grammars are text-based reproductions of traditional descriptive print grammars which expect the student to sit in front of a computer screen and read as they would read a grammar book. These grammars view grammar as an independent system of rules that is not directly linked or relevant to language usage and the language user and learner. Further evidence of this view and approach is found in the fact that these grammars do not include practice material that asks learners/users to test their understanding and command of language usage.