1. A user-interface method of incrementally providing fully qualified links to a set of relevant search engines implemented by a computer comprising at least one processor, the method comprising: identifying a set of search engines and associating each search engine of the set with at least one descriptive category to which the subject matter of the corresponding search engine relates; receiving a partial search query entered on a keypad by a user; after at least one keypress received from the user, inferring a set of potential full queries intended by the user, wherein the inferring the set of potential full queries includes determining suggested query refinements based at least in part on the partial search query; selecting a subset of the identified search engines that are relevant to at least one of the set of inferred full queries based on comparing the inferred full queries with the descriptive categories associated with the search engines; and for each of the selected search engines, providing a fully qualified link designed to directly launch a search for a relevant query using the search engine.