Could be useful for students that have English as their second language. World is opened up and the Web may be a good distance education tool. Teaches students how to use technology. Extends the classroom in both time and knowledge. Could encourage questions.
Students can ask questions without fear of peer criticism.
Helps students learn to manage the unprecedented access to information in today's world. Class attendance concerns. Must be incorporated into the fabric of the course or the students won't learn to use it. Constantly needs updating. Reliability of information on the Web.