Description: Google Alerts is a free service from Google that sends emails notifying users when new web content matching their search terms is indexed. Users can set up alerts around topics, companies, people, etc. to monitor new mentions and updates across the web.
Type: software
Description: Nagios is an open-source monitoring system that allows administrators to monitor network infrastructure like servers, switches, applications, and services. It can notify users when issues arise and help identify problems in a timely manner.
Type: software
Pricing: Open Source