What is Web 2.0 and why should teachers know about it?

http://www.law.fsu.edu/prospective_students/VideoViewbook/facilities-resources/technology.html

Technology changes from time to time. Twenty years ago, asked people what is Internet? Most people’s answer would be, “I don’t know, ask the people on the top.” However, in the 21^st century, if you don’t know what is Internet or don’t know anything about technology, their country and culture will be destroy soon. Most the young people know more any of teachers about the technology and a lot of computer geeks break the rule from time no time.

So if a teacher knows how to use Web 2.0, it will be very helpful tool for student. Since most of the younger generations know about computer and technology, so by using the Web 2.0, we can assign our homework on the Blog, or through e -mail, or maybe facebook, or other things. Most of the younger generations like to take some photos, by sharing the photo with each other, we can get to know each other not just a teacher and student relationship, it might become friend with friend. In my history class, my professor told that Wikipidia actually is more correct then before, and easier to understand then a textbook.