I think that we should use technology in our classes with EFL students for example; using blogger posts to test student's skills in writing and grammar. Teacher asks the students to write a paragraph as short story or description of an event to measure their ability in writing, and the group's members comment and correct the mistakes of their friends' posts.
By using delicious also, teacher can give the students hyper links to go over and also to share with other some links that useful for the class work . for example, a web site offers activities that help students in learning vocabulary such as giving them multiple choices with sentences to choose the correct word.
By using wiki teacher and students can create a data pace for the group works such as projects and creating lessons such as vocabulary and grammar activities.