This article is about the WebSpy, which helps the users in checking and updating the changes of the sites and web pages. Through this article, the author demonstrates how to get notified, when the content of the web changes. The author used .NET for the implementation of this WebSpy. The users should just enter a list of URLs for checking. This article tells that the WebSpy would send email whenever there is a change in that particular web content whenever it is updated.