A method and system for enabling the display of portions of internet documents that have been highlighted by users of a highlighting service are disclosed. Accordingly, a highlighting service includes a web portal with a web page providing users with a snippet of code, which, when inserted into an internet document, causes the internet document to display highlights from the highlighting service. The snippet of code can be configured to query the highlighting service for highlights that were made by certain users, or, highlights made on documents from certain domains, and so forth. The code associated with the user interface object displaying the highlights can e configured to periodically query the highlighting service to retrieve up-to-date highlights, thereby dynamically changing the highlights appearing on a web page or internet document.