Don't expect people to automatically come and visit your site when you make updates. You'll need to use Email Marketing and RSS to push updates to your audience. As part of an integrated marketing approach, "Subscribe Me " and "Tell a friend" forms can be used to capture users in your CRM database, whom you can email on a regular basis to tell them about site updates and news.
If your audience isn't interested in giving their email address to you but still wants to be updated then you still have the option to provide an RSS channel for them to subscribe to.
Learn about our Email Marketing service.