SEARCH RESULT DELIVERY ENGINE

1 . A method of delivering search results, comprising:

applying a query from a searcher to a primary index of words on Internet websites to produce a first set of search results;

segmenting the query to obtain one or more word groups, each word group including a predetermined number of words;

analyzing each word group to determine a degree of relatedness between that word group and a group of Internet websites related to each other by a common factor;

applying each word group to a secondary index of words in the group of related websites, if that word group has a predetermined level of relatedness to the group of related websites, to produce a second set of search results; and

combining the first and second set of search results to produce a combined set of search results for the searcher.

2 . The method of claim 1 wherein the common factor is related to subject matter common to the group of related websites.

3 . The method of claim 2 wherein analyzing each word group to determine a degree of relatedness between that word group and a group of Internet websites related to each other by a common factor further comprises:

comparing the word group to the secondary index of the related group of websites.

4 . The method of claim 1 wherein the common factor among the group of related websites is that each of the common websites is primarily news website.

5 . The method of clam 3 wherein analyzing each word group to determine a degree of relatedness between that word group and a group of Internet websites related to each other by a common factor further comprises:

determining the timeliness of the word group with respect to current news by determining if the word group is present in news provided on a substantial number of the news websites in the group during a predetermined time period before the word group is analyzed.

6 . The method of claim 1 wherein segmenting the query to obtain one or more word groups further comprises:

identifying a pattern including the predetermined number of words.

7 . The method of claim 6 wherein identifying a pattern including the predetermined number of words further comprises:

identifying an order in which the predetermined number of words appear in the query.

8 . The method of claim 6 further comprising:

segmenting text associated with each website in the group of related websites into word groups having the same number of predetermined words to form the secondary index.

9 . The method of claim 8 wherein segmenting text associated with each website into word groups having the same number of predetermined words to form the secondary index

identifying a pattern in an order of appearance of the predetermined number of words.

10 . A method of delivering search results, comprising:

segmenting a query into one or more nGrams, each nGrams having n words appearing in a predetermined sequence;

forming a table of nGrams appearing in at least one group of websites; and

providing a search result set in response to the query from the at least one group of websites if the query nGrams have a sufficient match to the nGrams of the at least one group of websites.

11 . The method of claim 10 wherein n is equal to two.

12 . The method of claim 10 wherein forming a table of nGrams appearing in at least one group of websites further comprises:

matching hash tables of the query nGrams to hash tables of the n-grams of the at least one group of websites.

13 . The method of claim 12 wherein matching hash tables further comprises:

maintaining hash tables for nGrams of the at least one group of websites.

14 . The method of claim 13 wherein maintaining hash table further comprises:

analyzing the at least one group of websites to identify nGram patterns;

forming an index of the nGram patterns; and

maintaining a hash table of the index of nGram patterns.

15 . The method of claim 10 providing a search result set in response to the query from the at least one group of websites if the query nGrams have a sufficient match to the nGrams of the at least one group of websites further comprises:

determining the relatedness of the query nGrams to nGrams of each of the plurality of groups of websites; and

providing search results from each of the plurality of groups of websites having a predetermined level of relatedness between nGrams of that groups of websites and the query nGrams.

16 . The method of claim 15 wherein the predetermined level of relatedness is different between different ones of the plurality of groups of websites.

17 . The method of claim 16 wherein the websites within each of the plurality of groups of websites are related to each other by a common factor.

18 . The method of claim 17 wherein the common factor in one of the predetermined groups of websites is that each such websites is a news website.

19 . The method of claim 18 wherein the predetermined level of relatedness is related to how recently the nGrams appeared in each such news website.

20 . The method of claim 17 wherein the common factor in one of the predetermined groups of websites is that each such websites is a travel or financial data website.