I think your definition of Blog is broader than mine would be. For example, my Blog doesn't have trackbacks, as such there's no link back to any emerging network that might be generated from that topic. Equally, can you have a Blog without comments? I believe if they're offered as a feature you can usually turn them off. If comments and trackbacks are not mandatory for a Blog, then a Blog cannot be deemed any more interactive than a newspaper editorial where the writer can refer to other newspaper columns or the day's events and garner feedback in the form of reader letters. But, admittedly, we are just arguing semantics here.