Providing suggestions of related videos

One or more computer-storage media storing computer-useable instructions that, when used by one or more computing devices, causes the one or more computing devices to perform a method comprising:

• algorithmically determining that a first media file is related to a second media file, wherein the first and the second media files are related if at least one of:
• (1) the first and the second media files are selected when presented in response to a user-submitted query, or
• (2) the first and the second media files are selected within a single user-session having a specified duration of time;
• calculating a relevancy score that indicates a relevancy of the first media file in relation to the second media file and that is used to compare how related the first media file is to the second media file, wherein the relevancy score is determined, in part, by a number of users who select the first and the second media files in response to the user-submitted query or within the single user-session;
• and
• storing an identification of the first and the second media files and the associated relevancy score in a searchable database.