A server system which stores data indicating the identifiers of web pages associated with which each portion has been previously rendered. The data facilitates identification of the entire web pages even if interest is expressed based on content of the portions. For example, a search engine may search the contents of the portions, and then send as search results the identifiers of the web pages which have previously included the portions. As a result, a user may be displayed the entire web pages (as opposed to just the content of the portion), which could be more meaningful.