This comment is just a note: A cool application that could be a good learning project and meaningful for HN could be something like a dead link notifier. The ap

This comment is just a note: A cool application that could be a good learning project and meaningful for HN could be something like a dead link notifier. The application could give you updates about if one of your HN posts links is now broken. About 5-10% of the older links I find on HN are no longer working, so it seems useful and could be useful outside of HN.