Alerts, in the form of an automatic email, can be a ‘set and forget’ way to see new journal content, new publications by a researcher or new results in a database search based on a topic. Being selective and targeted avoids getting too many emails in your in-box or saved to folders that never get reviewed.
Individual databases may refer to these services as "alerts" or "saved searches." Some may require the creation of a user profile.
Manage alerts by setting aside a dedicated time to review them and identify those ‘gems’ to read or add to your reference management system. Periodically review alerts for continued applicability to your current research interests and keep, amend or delete them.
Note: Alerts to subscription databases may require an institutional email address making them less transportable if you leave the organisation.