Once you have set up an account, you can change the settings very easily on the forum to send you an email alert whenever someone makes a post to the forum. You can elect to have this sent to you instantly, daily, or weekly. It's super useful to stay connected on the latest discussion(s). That way you don't feel like you need to check back all the time to see if there's any new posts.
Go to the following:
Profile --> Notifications --> Edit Profile --> Notifications --> Under both "New Thread" and "New Post" change the email dropdown selector to "instant" (or "daily" or "weekly" if you prefer)