Method and system for performing a search on a network

1. A computer-implemented method for performing a trusted search, the method comprising:

prompting a user to select from categories of trust criteria;

prompting the user to enter parameters related to the selected categories of trust criteria;

storing, in memory, the selected categories and the parameters of trust criteria;

assigning a credibility score to a Web site based on whether the Web site meets at least a portion of the trust criteria;

storing, in memory, the Web site in an index of trusted Web sites if the credibility score assigned to the Web site is within a predefined range of credibility scores;

displaying the Web site on a machine if the Web site is determined to contain information that is relevant to a search query; and

wherein displaying the Web site further comprises displaying the Web site on the machine only if the credibility score of the Web site lies within a confidence range of credibility scores, the confidence range including a portion of the predetermined range.

2. The computer-implemented method of claim 1 , wherein the confidence range includes a maximum credibility score of the predefined range of credibility scores.

3. The computer-implemented method of claim 1 , further comprising setting the confidence range to a default value.

4. The computer-implemented method of claim 1 , further comprising adjusting the confidence range from a user interface.

5. The computer-implemented method of claim 1 , wherein the trust criteria comprise a domain.

6. The computer-implemented method of claim 1 , wherein the trust criteria comprise an endorsement from an authoritative source.

7. The computer-implemented method of claim 1 , wherein the trust criteria is based on metrics data derived from an Internet audience measurement tool.

8. The computer-implemented method of claim 1 , wherein the trust criteria is based on data derived from at least one online survey.

9. The computer-implemented method of claim 1 , wherein assigning a credibility score further comprises applying a mathematical formula to at least one input parameter value representing whether the Web site meets at least a portion of the trust criteria.

10. A system for performing a trusted search, the system comprising:

a storage device configured to store an index of trusted Web sites; and

a server comprising:

a processor configured to:

prompt a user to select from categories of trust criteria;

prompt the user to enter parameters related to the selected categories of trust criteria;

store, in memory, the selected categories and the parameters of trust criteria; and

calculate a credibility score of a Web site based on whether the Web site meets at least a portion of the trust criteria and to store the Web site in the index of trusted Web sites if the credibility score assigned to the Web site is within a predefined range; and

a communication interface connecting the server to a network, the communication interface configured to receive a search query and to send an address corresponding to the Web site via the network;

displaying the Web site on a machine if the Web site is determined to contain information that is relevant to a search query; and

wherein displaying the Web site further comprises displaying the Web site on the machine only if the credibility score of the Web site lies within a confidence range of credibility scores, the confidence range including a portion of the predetermined range.

11. The system of claim 10 , further comprising a client connected to the network, the client configured to receive the address from the server via the network and to display the Web site in a graphical user interface.

12. The system of claim 11 , wherein the network is the Internet and the Web site belongs to the World Wide Web (WWW).

13. The system of claim 11 , wherein the graphical user interface provides an option to perform a trusted search.

14. The system of claim 13 , wherein the graphical user interface provides categories of the trust criteria to be applied to the trusted search.

15. A computer program product embodied in a tangible machine-readable memory device, the computer program product comprising instructions that cause a computer to:

prompt a user to select from categories of trust criteria;

prompt the user to enter parameters related to the selected categories of trust criteria;

store, in memory, the selected categories and the parameters of trust criteria;

assign a credibility score to a Web site based on whether the Web site meets at least a portion of the trust criteria;

store, in memory, the Web site in an index of trusted Web sites if the credibility score assigned to the Web site is within a predefined range of credibility scores;

display the Web site on a machine if the Web site is determined to contain information that is relevant to a search query; and

display the Web site on the machine only if the credibility score of the Web site lies within a confidence range of credibility scores, the confidence range including a portion of the predetermined range.

16. The computer program product of claim 15 , comprising further instructions that cause the computer to apply a mathematical formula to at least one input parameter value representing whether the Web site meets at least a portion of trust criteria.

17. A computer-implemented method comprising:

at a server, assigning a credibility score to a Web site based on whether the Web site meets at least a portion of trust criteria;

prompting a user to select from categories of trust criteria;

prompting the user to enter parameters related to the selected categories of trust criteria;

storing, in memory, the selected categories and the parameters of trust criteria in a database, storing the Web site in an index of trusted Web sites in memory if the credibility score assigned to the Web site is within a predefined range of credibility scores;

sending an address of the Web site from the server to a client if the Web site is determined to contain information that is relevant to a search query;

displaying the Web site on a machine if the Web site is determined to contain information that is relevant to a search query; and

wherein displaying the Web site further comprises displaying the Web site on the machine only if the credibility score of the Web site lies within a confidence range of credibility scores, the confidence range including a portion of the predetermined range.

18. A computer-implemented method comprising:

providing categories of trust criteria on a graphical user interface at a client;

prompting a user to select from the categories of trust criteria;

prompting the user to enter parameters related to the selected categories of trust criteria;

storing in memory, the selected categories mad the parameters of trust criteria;

at a server, storing in memory, the trust criteria selected from the categories of trust criteria;

sending an address of the Web site from the server to the client if the Web site meets at least a portion of the trust criteria contains information related to a search query;

displaying the Web site on a machine if the Web site is determined to contain information that is relevant to a search query; and

wherein displaying the Web site further comprises displaying the Web site on the machine only if the credibility score of the Web site lies within a confidence range of credibility scores, the confidence range including a portion of the predetermined range.