A user interface (UI) includes a video display area for presenting video content, a text entry field, and a comment section. The UI also provides UI controls for enabling a user to select a portion of the video content and for generating a typed hyperlink in the text entry field that references the selected portion of the video content. A UI control for creating a new comment in the comment section of the UI that includes the typed hyperlink from the text entry field is also provided. A user can select a typed link in a comment and, in response thereto, the content type for the referenced portion of the video content can be determined based on data in the selected link. A preview of the portion of the video content can then be presented based upon the determined content type.