GigaAlert http://googlealert.com/
Indigo Stream Technologiesによる。キーワードを登録（無料）しておけば、定期的に検索結果をチェックして、その変化をメールで知らせてくれる。 『The Power to be Informed. Stay up to date
Giga Alert, formerly known as Google Alert, is the web's leading automated search and web intelligence solution for monitoring your professional interests online. It tracks the entire web for your personalized topics and sends you new results by daily email. The essential tool
Giga Alert helps you manage your reputation, monitor your competitors, and generate critical leads for your business. You can use Giga Alert to track mentions of your name, your website, your place of work, or any people or projects that are important to you. Many people use Giga Alert to keep track of what the web is saying about them, their companies, their industries, and the projects they are involved in. Read these testimonials to learn how people are using Giga Alert to meet their needs. Track the entire web
Using its unique Web Intelligence technology, Giga Alert tracks new content across the entire web by monitoring billions of web pages indexed on a regular basis. This gives it far greater reach and breadth than news alert services that are limited to tracking only news sites. Highly acclaimed
Hailed widely by the press, including BBC's Website of the Day and USA Today's Hot Site, the award-winning Giga Alert service enables people in over 120 countries to stay up to date with their interests. Users include journalists, marketers, IT professionals, lawyers, doctors, salespeople, educators, researchers, and government employees. More about Giga Alert
Giga Alert is provided by Indigo Stream Technologies Ltd, a private company co-founded by Gideon Greenspan which also provides the Copyscape service. The Frequently Asked Questions provide more detailed information about Giga Alert.』