Track your comment
One problem bothers me a lot when I leaving comments on other people’s blog is that I can’t see that blogger’s or other people’ responds. But now you can simply receive any replies to your comment in your email by tick the box “Notify me of followup comments via e-mail”. This is a WP plugin called “Subscribe To Comments” (thanks to siuyee). I think this is one of the most useful plugins I have been used and I will recommend my friends who use WP to use this one.
There is a site called coComment which allows you to install a small plugin in your Firefox for IE, and collect all the comments you made in other people’s blogs. I had tried it before but I always forgot to press to active that function before posting comments. It doesn’t work quite well in some blog system. Also when you want to have auto responds to your comments, other poeple have to be a coComment users too. Too many limitations and too complicated to use, so I gave up at the end.
I like Livejournal’s replying system. It informs you by email when the author replies to your comment and you can just reply to that in your email. It’s convenient and efficient. But you have to be a LJ member first and this only to LJ blogs.



