Patent ID: 8230036

Claim:
A method for opening a user profile at an apparatus in a communication system on a computer network, the method comprising: receiving a request for a user profile of a first user from a second user; and determining contents of said user profile of said first user to be opened to said second user based on mail information on e-mail, which has been communicated between said first user and said second user in the communication system, wherein said contents are determined based on one or more of a group consisting of: a cumulative count of e-mail events between said first user and said second user, frequency of e-mail communication between said first user and said second user, a period from when an e-mail is sent or received between said first user and said second user to a present time, a total number of characters in said cumulative count of said e-mail events between said first user and said second user, and a total number of pictorial symbols included in said cumulative count of said e-mail events between said first user and said second user, wherein said contents are determined based on a first time elapsed after said first user receives e-mail from said second user until said first user sends a reply to said second user or a second time elapsed after said second user receives e-mail from said first user until said second user sends a reply to said first user, and wherein charging is performed based on said contents, which have been determined based on said cumulative count of e-mail events and said first time elapsed, or is performed based on said contents, which have been determined based on said cumulative count of e-mail and said second time elapsed.