Search engines (Google, Yahoo, etc.) provide an alert service linked to their news service (Google News, Yahoo! News, etc.). It is also possible to set an alert on a topic of your choice.
An example with Google:
Google provides a free alert service, Google Alerts, that can regularly send the results of a specified query to an email address.
You do not need to create a personal account to create an alert. However, you will need an account to manage your alerts.
Google Alerts come in handy in a variety of situations, and they're easy to set: