The subscriptions module allows members to keep up to date about changes on a site by getting notifications via email. You can subscribe to:

• An individual post of any node type (subscribe to post)
• A person's blog (subscribe to blog)
• New posts to selected categories (handled through the "my subscriptions" link, which displays all of a site's categories to choose which to subscribe to)

You are automatically subscribed to content you create. See How To Get Notified of Changes to the Site for instructions on how to subscribe and unsubscribed from notifications.