DocuMonitor is a multipurpose Web site contents and availability monitor that enables you to check the changes of the Internet documents automatically and cope with them faster. With DocuMonitor, you can monitor every pages of Web site that you exactly want to monitor. This is really better than RSS feed that is provided by the Webmaster with limited contents, not real-time. In addition to the content monitoring, DocuMonitor also provides a server availability check easily. DocuMonitor provides the visual/auditory alarming methods and email notification. In this version, multiple fetching/comparison thread, start-up program registration, balloon tip notification added.