6. A system for providing query parameters to a search engine, comprising: a data storage device; and one or more computers that interact with the data storage device and execute instructions that cause the one or more computers to perform operations comprising: receiving data specifying two or more locations of a graphical user interface that were included in a user selection area; determining, based on the received data, that a first portion of text is included in the user selection area; creating a textual search query based at least in part on the first portion of text; identifying a second portion of text that is presented in the graphical user interface, but is not included in the user selection area; modifying the textual search query based at least in part on the second portion of text, wherein the modifying comprises: including, in the textual search query, a word that differs from words included in the first and second portions of text and describes a context of the second portion of text; and submitting, by one or more computers, the modified textual search query to the search engine.
6. A system for providing query parameters to a search engine, comprising: a data storage device; and one or more computers that interact with the data storage device and execute instructions that cause the one or more computers to perform operations comprising: receiving data specifying two or more locations of a graphical user interface that were included in a user selection area; determining, based on the received data, that a first portion of text is included in the user selection area; creating a textual search query based at least in part on the first portion of text; identifying a second portion of text that is presented in the graphical user interface, but is not included in the user selection area; modifying the textual search query based at least in part on the second portion of text, wherein the modifying comprises: including, in the textual search query, a word that differs from words included in the first and second portions of text and describes a context of the second portion of text; and submitting, by one or more computers, the modified textual search query to the search engine. 9. The system of claim 6 , wherein: determining that the first portion of text is included in the user selection area comprises determining that an image located in the user selection area includes a visual representation of text; and comprises the creating the textual search query being based, at least in part, on the visual representation of text.