I don’t like trackbacks. They don’t flow with the replies. You have to link to another window to read and then get lost in some other nesting. It would seem better to just have a text reply and optionally a http link to your blog if you want to ref a new or previous blog entry. IMO, a better approach would be to have a NG style blog with threaded conversation. Much easier to follow. And if you want to post a link, post it at the end. Std support could be included for URLs or Ref links using textbox input at bottom of blog reply input box.