Before I moved all my blogs to my own WordPress blog platform (http://eblog.lichao.net), I was using blogger (http://lichaonet.blogspot.com) to write articles. I like my wordpress blogs now, but I still want to keep posting new articles on the blogspot site. First, I can use it as my backup or mirror blog sites. Second, I personall think that the blogger is better on Google search than wordPress blogs. But it is very difficult to manage multiple blogs on the same topic. One of these challenges is to centralize all the comments on only one blog site.
Since the wordpress one is my main blog site, I try to collect all blog comments on this blog. What I need to do is to 1) disable all comments feature on other mirror blog sites; 2) create a link to forward all visitors on mirror sites to my main blog for commenting.