Is there such thing as a wordpress or something else type of plug-in that does something like that? For an example, I own thiswebsite9000.com and I have a wordpress site. And as for entries, there some type of plug-in that allows users from other registered sites like livejournal, myspace, blogger, disqus, openid, etc to come and comment on my blog that's located on my own domain name. Is there such thing as that? Because I'm not a big fan of anonymouse comments or having people to create an account on my site.