Google News Debuts
Google News displays and categorizes headlines
amassed from news sources all over the world. Google News is "compiled solely by computer algorithms without any human intervention."The site archives articles "from approximately 4,000 news sources
worldwide," updates its collection of articles every 15 minutes, and automatically arranges those articles "to present the most relevant news first." Quotes from: http://news.google.com/help/about_news_search.htmlIf you want to
find out a whole lot more about how Google News actually works, you may consult Chris Sherman's recent SearchDay article http://searchenginewatch.com/searchday/02/sd1002-google-news.html