Methods, systems, and media for sending a message about a new video to a group of related users

A system for sending messages about new media content to groups of users, the system comprising:

• a memory;
• a hardware processor that, when executing computer-executable instructions stored in the memory, is programmed to:
• determine that a media content item associated with a content creator has been uploaded to a media sharing service;
• identify a group of candidate users to receive a message indicating that the media content item is available by determining a likelihood that each user in the group of candidate users will engage with the media content item is greater than a predetermined threshold;
• identify a sub-group of users within the group of candidate users based on relationship information associated with the users within the group to each other and based on the determined likelihood of each user engaging with the media content item;
• and
• transmit the message to the sub-group of users.

A non-transitory computer-readable medium containing computer executable instructions that, when executed by a processor, cause the processor to perform a method for sending messages about new media content to groups of users, the method comprising:

• determining that a media content item associated with a content creator has been uploaded to a media sharing service;
• identifying a group of candidate users to receive a message indicating that the media content item is available by determining a likelihood that each user in the group of candidate users will engage with the media content item is greater than a predetermined threshold;
• identifying a sub-group of users within the group of candidate users based on relationship information associated with the users within the group to each other and based on the determined likelihood of each user engaging with the media content item;
• and
• transmitting the message to the sub-group of users.