1. A method comprising: receiving, by a computer accessible via a network and having a display, input from a user via a web address bar to navigate to a web site; navigating to the web site by the computer; storing, by the computer, information about the web site in a file unless predetermined characteristics of actions performed by the user on the web site once the user has navigated to the web site are present; repeating, by the computer, the navigating and storing steps for each requested web site; determining, by the computer, web sites associated with a search query of the user as the search query is being entered by the user into a search area of a visibly displayed user interface of an application program executed by the computer, the search area separate from the web address bar, the associated web sites being sites that have been previously navigated to by the user, the determining step comprising obtaining the web sites associated with the search query from a data structure previously generated by the computer from the file, the data structure comprising parsed entries of Uniform Resource Locators (URLs) associated with the previously navigated web sites; and based on the determining step, causing web site links corresponding to the associated web sites to be visibly displayed on the display as the search query is being entered, the web site links comprising, in addition to the URLs associated with the previously navigated web sites, information previously collected for the web sites and available via the network, the information comprising a timestamp of a most recent visit to the previously navigated web sites by the user, the predetermined characteristics of actions performed by the user selected from a group of characteristics consisting of the user selecting a new window or tab within a predetermined amount of time after navigating to the web site, and detecting a new navigation request not associated with the web site within a predetermined amount of time after navigating to the web site, wherein the obtaining the web sites associated with the search query further comprises: for each Uniform Resource Locator (URL) entry associated with a web site, adding an entry to the data structure for each search term associated with the URL, for each URL entry associated with a web site, parsing a title of the entry into tokens, for each URL entry associated with a web site, tokenizing its domain name into a plurality of words, for the each URL entry having its domain name tokenized, adding the plurality of words to the data structure for the URL, for each URL entry having a filename, tokenizing the filename, and adding the filename to the data structure for the each URL entry having the filename.