i agree that a lot of the uses of the blog are good. i would incorporate many of the uses in my classroom, one way i'd use it is as a way to hold open discussion. shy kid could without having to be outspoken in the class get a chance to speak out.  but as a log to a reading it would be unfair to the people that don't like to sit and read or type everyday.  the person that has a lap top can read and write everyday at leasure but the student that has to rely on the school computer would be at a disadvantage as well as the student that is a crammer or last minute person. with the works being dated automatically each day if he stretched out his work and really did it just the night before it was due this would be shown by the dating that is given on each of his as well as the the teacher has been checking on the assignment each day and seen that he has not written anything.