Recently, the renowned antivirus testing and certification organization AV-Test collaborated with PC World, the largest computer retail group in the UK, to test 13 antivirus software suites and released the top ten global antivirus software suites ranking for 2010. In this test, Norton Internet Security 2010 ranked first, Kaspersky Security Suite 2010 ranked second, and AVG Security Suite 9.0 ranked third. This antivirus software ranking is very helpful for us when choosing antivirus software suite products.