1. A method of identifying content of interest in a structured electronic document by an electronic device having a processor, an input device, and a display device, the method comprising: rendering a structured electronic document to the display device; receiving through the input device at least two separate indications of content elements within the rendered structured electronic document; and identifying with the processor a common characteristic of the indicated content elements, and identifying any further content element within the rendered structured electronic document sharing the common characteristic with the indicated content elements.