The third model 'critical literacy' is one that as Wallace (2001) explains 'is powerful to the extent that it offers a vantage point from which to survey other literacies.' Like the ideological model, critical literacy is understood as social action through language use that develops us as agents inside a larger culture. However, it takes us beyond this in providing an active, challenging approach to reading and textual practice by the analysis and critique of the relationship among texts, language, power, social groups and social practice. It shows us ways of looking at written, visual, spoken, multimedia and performance texts to question and challenge the attitudes, values and beliefs that lie beneath the surface. It has been suggested that critical literacy links with our modern lifestyles of a rapidly changing globalised world. Changing societal structures, increasing social and cultural diversity and the marketing of ideas and products through multimedia mean that we need to think about literacy for lifelong learning in new ways. The way that information is received today hadn't been invented twenty years ago. The world is becoming increasingly accessible because of instantaneous communications; the corpus of print literature is expanding almost exponentially because of the number of works either being written in English not just by authors from United States or the British Commonwealth but by major authors outside these regions. The consequence is that the technology is not only bringing 'global English' (Wallace, 2004) into daily contact, the nature of digital communication is aiding in the demise of a 'standard English'. Instant messaging, text messaging, and other technological forms of communication are creating new writing practices that often undermine traditional, standard English for the sake of faster, more effective communication. English is becoming more complex than ever, and our students will need to be flexible and efficient users of a vast array of discourses that isolated, drill-oriented grammar lessons simply will not teach. We need to be able to make meaning from the array of multimedia, complex visual imagery, music and sound, even virtual worlds that confront us each day in addition to written and spoken words. Changes in society are occurring so rapidly that we need to take time to think about whether they will have positive or negative effects upon our ways of living.