System of providing contents preferred by a user and method thereof, system of selecting contents preferred by a user and method thereof, and system of selecting contents preferred by a group of users and method thereof

A system and a method for offering user preferred contents, the system and the method for analyzing the user preferred contents, and the system and the method for analyzing group preferred contents are provided to offer a webpage fit for a request of each user and effectively extract the preferred contents of each user/group by examining content use record of the user and a user group. A user database(10) stores information of the users registered to a website and the content use record of each user. A user discriminator(20) discriminates the user offering user ID information to the website by inquiring the user database. A group fixer(40) discriminates the group defined according to user characteristics of the user by using personal information of the user. A group preferred content database(50) stores the preferred contents of each group. A webpage database(70) stores the webpage provided to a user terminal. A content arranger(60) arranges representative information of the user preferred contents to the webpage if the user preferred contents are present and arranges the representative information of the group preferred contents to the webpage if not. A webpage provider(62) provides the webpage to the user terminal.