You just check the comments feed occasionally, and make sure you follow it back far enough until you&#x27;ve found a comment you&#x27;ve previously seen (or a time prior to the last seen comment).  Of those comments, if any are for users that have requested notification, shoot off an email to their supplied notification email address with the relevant info.<p>It&#x27;s really not that complicated, and a great starter&#x2F;hobby project.  I imagine the only reason there wasn&#x27;t a replacement out sooner for the prior site that stopped working is that a lot of us weren&#x27;t really aware it had stopped, or weren&#x27;t aware it was dead and not suspended (is it?), or hadn&#x27;t yet gotten off our buts to make a replacement once we determined the prior site was gone.<p>It&#x27;s the kind of small scope and easily defined project that&#x27;s great for learning a new language.