1. A method performed by a portable capture device for updating a web page, the method comprising: optically or acoustically capturing a portion of a rendered document by the portable capture device, wherein if acoustically captured then the capturing of the portion of the rendered document is performed via a microphone of the portable capture device and includes performing speech recognition on the acoustically captured portion of the rendered document and converting the captured portion to digital content within the portable capture device, and if optically captured then the capturing of the portion of the rendered document includes converting the captured image to digital content within the portable capture device; generating, at the portable capture device, a textual query string from contents of the captured portion of the rendered document; submitting, from the portable capture device, the query string to a query engine that indexes full texts of documents; transmitting, from the portable capture device, an identifier associated with a user of the portable capture device to the query engine; receiving, at the portable capture device and from the query engine a link to an electronic document that includes the captured portion of the rendered document; and transmitting, from the portable capture device to a web page authoring system, the link to be inserted into a predetermined web page authored by the user of the portable capture device and inserting the link into the predetermined web page.