It is with great sadness that yesterday I discovered one of my favorite services, Co.mments, is shutting down. It looks like today is the last day.
Here is the message provided by the owners:
For those unfamiliar with the service, it allows you to track follow up comments. I used it whenever I left a comment on a blog post, so now I’m not sure what service I will be using. I prefer a bookmarklet, so I’ll have to look around and see if there is anything that can accommodate me.
What do you guys use to track follow up comments?
Kyle Eslick
Kyle Eslick is the founder and primary author of WordPress Hacks. You can learn more about him at KyleEslick.com or you can follow his personal tweets here.
Thanks for releasing this version. 
As your site has a lot of widgets, so I think it will significantly reduce the server usage. 
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It sounds like BackType (http://www.backtype.com/) I read about it and I’m trying it out now. Don’t know if that’s what you’re looking for…
Sad to see, but I’ve been using backtype.com since a while so it does not affect me.
I’ve been using CoComment for a while, does the job well
“Subscribe to comments” plugin is obviously great… where it’s installed.
For blogs without it or with huge number of comments where I comment on regular basis – I take comments feed and filter comments directed to me (@ addressing is common when there are lots of comments) with Yahoo Pipes.
Had discovered backtype.com yesterday and it looks interesting.
I’m using long time with commentful.blogflux.com not that bad and it free.
Nice try.
Unfortunately, I was never able to use that service. And I don’t track follow up comments, but I am quite obsessed with BackType, a service that less you follow ‘people’ and their comments.
I often use the service to keep a track of my own comments, and all of the blogs that I comment on.
Wow, it looks like I missed out on a really amazing service.
I’m sad to have missed out, and I’m sorry to all of you who are (were) using it, and can no longer do so.
I got scared for a minute and thought you were talking about http://www.cocomment.com – which is the service I use. There is a firefox extension and features to post comments you make to other social networks (I send mine to twitter). I also connected the cocomment feed to Profilactic to add comments to lifestream.
Using the firefox icon I am one click away from seeing any updates to conversations I’ve participated in. It seems to be very reliable, I’ve been using it for a few months now.
I don’t use any. Never thought there are such sofware or sites doing it.
I don’t use co.mmments or anything similar.. i usually only bother commenting if i see a subscribe to comments box under the post. That being said, it seems really silly to “shut down” the site… surely someone out there would buy it.