At Basecamp, we've used cron jobs for years to handle various parts of our workloads with great success. Moving apps to the cloud doesn't change how useful cron jobs are, it just gives us some added challenges if we want to ensure we're monitoring them correctly. We monitor a couple aspects of our CronJobs at Basecamp, primarily Errors...

Pretty plain, but I like the space this carves out for people to share their thoughts!