Abstract: Provided are methods and systems for automatic categorizing of interpersonal relationships of a user of a social networking service with the contacts of the user in the social networking service. The monitoring of relationships of a user is performed by integration within the social networking service to receive communication data of the user. The communication data is pre-analyzed using a user predefined configuration, and then analyzed according to timing and content factors. The timing and content factors include a frequency, a date, a time, an intensity, and content of communication of the user and the contacts of the user. Based on the analyzing, the interpersonal relationships of the user and contacts of the user is categorized and optionally stored and provided to the user via a graphical output interface.