Have you commented on a blog or site and wanted to check back that page later but forgot the URL? Well, with Commentful such incidents won’t happen. Commentful is a service that can watch blog posts, flickr pages, and digg submissions for new comments and when there is an update it can notify you instantly. You can also specify how many days you want to track the particular page, once the expiration date passes it won’t track that page anymore. Nice Tool indeed.
http://commentful.com
Finally someone has created such a useful service! Ades, thank you so much for this great news!