I'm not the OP, but... > Can you share with us how you implemented this? 1) Perform Criagslist search 2) Use his provided bookmarklet which sends the current

I'm not the OP, but... > Can you share with us how you implemented this? 1) Perform Criagslist search 2) Use his provided bookmarklet which sends the current URL to his site -- writing that bookmarklet is just a JavaScript one-liner, probably 3) Every CL search page has a link to an RSS feed, so pull that feed URL out of the search page the bookmarklet sent in 4) Have a cron job periodically fetch the feed and use MagpieRSS, which he linked to, to parse it and get a list of search results 5) Compare the results to what you saw last time the feed was fetched, and if there are new ones, use MailJet to send an alert e-mail to the user. Include LaunchBit's snippet to show ads and earn some money from these mails