A couple of weeks ago Passle was excitingly featured on Product Hunt - the place that every day curates a list of the top products and startups to help people discover the "next big things" in tech.
Having subscribed to the platform to keep updated with the latest technologies through their daily email digest - it has now become one of the few channels I use on a regular basis when it comes to email marketing, alongside my Google Alerts and a handful of other newsletters I am subscribed to.
In response to the question "What makes this daily email so sticky?", Ryan Hoover, the Founder of Product Hunt, stresses the importance of consistency - attributing this factor to making their email an expected and welcomed update for their subscriber community.
Consistency: The email goes out at the same time every day (7:30 a.m. PT) and will always contain the same section of information: the top five products from the previous day. “People know what they are going to get — we’ve created an expectation that they can look forward to. It becomes part of their morning routine. If it went out at a different time or on unexpected days, I don’t think it would be as habit forming.”
http://firstround.com/review/Product-Hunt-is-Everywhere-This-is-How-It-Got-There/