EasyCron - Get frustrated with Cron on your server? Hosting limits your Cron use?
RetailMenot - The RetailMeNot mobile app allows you to find deals on the go for both online shopping and in store shopping.
Cronly - Keep track of your cron jobs and SSL certificates. Don't let them fail unnoticed.
Dealspotr - Dealspotr is like Wikipedia for deals.
FastCron - Online cron job service
Honey - Honey is a browser extension that automatically finds and applies coupon codes at checkout with a single click.