Abstract: A first user of a presentation machine may be a recruiter that initiates an action in reference to a first user profile. The first user profile may describe a first candidate for a job. The presentation machine may identify the first user profile and determine a similarity score that indicates a degree of similarity between the first user profile and a second user profile that describes a second candidate for the job. The presentation machine may also access a volatility score that indicates a likelihood that the second candidate is receptive to a proposal that the second candidate be employed by an employer. Based on the similarity score and on the volatility score, the presentation machine may determine a rank of the second user profile. Based on the determined rank, the presentation machine may present the second user profile to the first user.

Abstract: Techniques for enabling members that have interacted physically to interact thereafter via an online social networking service are described. According to various embodiments, it is determined that a first member and a second member of an online social networking service physically interacted at an interaction location at an interaction time, and a specific time interval commencing at the interaction time is calculated. Thereafter, an ephemeral prompt is displayed to the first member, during the specific time interval, indicating that the first member physically interacted with the second member, and inviting the first member to message the second member via the online social networking service. The ephemeral prompt is prevented from being displayed subsequent to expiration of the specific time interval.

Abstract: A first user of a presentation machine may be a recruiter that initiates an action in reference to a first user profile. The first user profile may describe a first candidate for a job. The presentation machine may identify the first user profile and determine a similarity score that indicates a degree of similarity between the first user profile and a second user profile that describes a second candidate for the job. The presentation machine may also access a volatility score that indicates a likelihood that the second candidate is receptive to a proposal that the second candidate be employed by an employer. Based on the similarity score and on the volatility score, the presentation machine may determine a rank of the second user profile. Based on the determined rank, the presentation machine may present the second user profile to the first user.

Abstract: A first user of a presentation machine may be a recruiter that initiates an action in reference to a first user profile. The first user profile may describe a first candidate for a job. The presentation machine may identify the first user profile and determine a similarity score that indicates a degree of similarity between the first user profile and a second user profile that describes a second candidate for the job. The presentation machine may also access a volatility score that indicates a likelihood that the second candidate is receptive to a proposal that the second candidate be employed by an employer. Based on the similarity score and on the volatility score, the presentation machine may determine a rank of the second user profile. Based on the determined rank, the presentation machine may present the second user profile to the first user.

Abstract: Techniques for enabling members that have interacted physically to interact thereafter via an online social networking service are described. According to various embodiments, it is determined that a first member and a second member of an online social networking service physically interacted at an interaction location at an interaction time, and a specific time interval commencing at the interaction time is calculated. Thereafter, an ephemeral prompt is displayed to the first member, during the specific time interval, indicating that the first member physically interacted with the second member, and inviting the first member to message the second member via the online social networking service. The ephemeral prompt is prevented from being displayed subsequent to expiration of the specific time interval.

Abstract: In various example embodiments, a social network server maintains a social networking service having a plurality of member profiles, each member profile being associated with a member of the social networking service. When the social networking service is accessed by a member, the member is presented with a user interface for interacting with the social networking service where the user interface presents information associated with the member's profile. In addition, the social network server includes various modules for presenting a featured professional profile at a predetermined location within the user interface. These modules include a featured profile selection module, a feature profile display module, and a featured profile communication module that interact to select and display the featured professional profile selected from the various member profiles associated with the social networking service.

Abstract: A first user of a presentation machine may be a recruiter that initiates an action in reference to a first user profile. The first user profile may describe a first candidate for a job. The presentation machine may identify the first user profile and determine a similarity score that indicates a degree of similarity between the first user profile and a second user profile that describes a second candidate for the job. The presentation machine may also access a volatility score that indicates a likelihood that the second candidate is receptive to a proposal that the second candidate be employed by an employer. Based on the similarity score and on the volatility score, the presentation machine may determine a rank of the second user profile. Based on the determined rank, the presentation machine may present the second user profile to the first user.