If you have the habit of commenting on various sites, then tracking comments would surely be a pain unless they’ve installed the Subscribe to Comments plugin. If they haven’t, fear not - Commentful is what you need! This is an easy way to track comments.

With Commentful, no more tracking comments via RSS feeds, or emails. You can install the Firefox extension and you’re good to go! All you need to do is to add the page to your “watchlist” and when there’s a new comment waiting, you’ll be notified with a little image on the status bar. You can also track the comments via RSS though, its still open for choosing!

Commentful also works on eBay, YouTube, Digg and del.icio.us as well. You can also use it to track replies on forums ranging from phpBB to vB. Extremely useful for people like me!

More on how to use Commentful and other help is provided on their site. A complete list of supported sites can be viewed from here.