System and method for providing information regarding posts on social networking sites

A system for providing a user with notification regarding a post, the system comprising:

• one or more processors, and
• a machine-readable medium comprising instructions stored therein, which when executed by the processors, cause the processors to perform operations comprising:
• receiving user input associated with associating a content item with a message for posting by a user on a social networking site;
• in response to the user input associated with linking the content item with the message, the one or more computing devices automatically determining an identifier for the content item, and automatically identifying, based on the determined identifier, one or more messages which were previously posted on the social networking site and which include the content item;
• determining a number of contacts, associated with the user, that posted the one or more messages;
• calculating a ratio of the number of contacts to a total number of contacts associated with the user;
• and
• providing for display to the user in connection with a display of the message a notification of the one or more messages which were previously posted on the social networking site and which include the content item, the notification comprising names of the contacts associated with the user that posted the one or more messages when the ratio satisfies a threshold ratio that represents a probability of the user identifying the names of the contacts that posted the one or more messages.

A non-transitory machine-readable medium, comprising instructions stored therein, which when executed by a processor, cause the processor to perform operations comprising:

• receiving user input associated with associating a content item with a message for posting by a user on a social networking site;
• in response to the user input associated with linking the content item with the message, the one or more computing devices automatically determining an identifier for the content item, and automatically identifying, based on the determined identifier, one or more messages which were previously posted on the social networking site and which include the content item;
• determining a number of contacts, associated with the user, that posted the one or more messages;
• calculating a ratio of the number of contacts to a total number of contacts associated with the user;
• and
• providing for display to the user in connection with a display of the message a notification of the one or more messages which were previously posted on the social networking site and which include the content item, the notification comprising names of the contacts associated with the user that posted the one or more messages when the ratio satisfies a threshold ratio that represents a probability of the user identifying the names of the contacts that posted the one or more messages.