We can use the internet for so much in our lives, and many of us learn, mostly by trial and error whether to trust the material on any given site. It appears that at school, however, students are using material without judging it efficacy or its source. Welcome then the teaching of how to evaluate websites. Many teacher librarians have taken this as part of their job. In my reearch for ed news bytes I discovered a wonderful site that provides information on evaluating websites.
Useful, undoubtedly, for adults as well.