Google Alerts

Google Alerts is a content change detection and notification service, offered by the search engine company Google, that automatically notifies users when new content from news, web, blogs, video and/or discussion groups matches a set of search terms selected by the user and stored by the Google Alerts service. Notifications can be sent by email, as a web feed, or displayed on the users’ iGoogle page. The service is available to the general public as an open beta release.