By encouraging visitors to subscribe to your blog, each post is then “pushed” to them. No longer are they required to hunt (or pull) for this information daily because it shows up in their news readers each day automatically.
As Godin explains:
This isn’t trivial. It changes everything about the way you market what you market. I’d spend some time thinking about whether you push or pull, about whether you can flip that, and about whether your posture matches your message.
ContentRobot says: it’s possible to market effectively on your business blogs. The key is to shape your message with everything you post.