Method and server for providing content list and operating method of user terminal

A server for providing a content list, the server comprising:

• a memory;
• and
• at least one processor connected to the memory and configured to execute instructions included in the memory,
• wherein the at least one processor is configured to
• perform control to provide a source content to a chat room,
• perform control to receive a request for providing a content list related to the source content from a first terminal of a first member,
• perform control to provide at least one of a first content list including at least one keyword-related content selected based on a keyword of the source content among the entire contents and a second content list including at least one group-related content belonging to the same group as a group of the source content among the entire contents,
• perform control to receive information on a selection content selected by the first member among contents included in the at least one content list from the first terminal, and
• perform control to provide the selection content to the chat room.

An operating method for a user terminal, the operating method comprising:

• displaying, by the user terminal, a source content provided by a counterpart participant of a chat room on the chat room;
• receiving, by the user terminal, selection on the source content from a user;
• displaying, by the user terminal, at least one of (1) a first content list including at least one keyword-related content related to a keyword of the source content and (2) a second content list including at least one group-related content that belong to the same group as a group of the source content on the user terminal;
• receiving, by the user terminal, selection for any one content among the contents included in the at least one content list from the user;
• and
• displaying, by the user terminal, the any one content on the chat room.