Systems, methods, and apparatus to identify media presentation devices

1. A method of monitoring network activity, the method comprising:

receiving registration data from a panelist, the panelist being associated with a first network device and a second network device, the first and second network devices associated with a same public Internet protocol address;

associating respective ones of the first and second network devices with respective ones of at least two pseudo domain name service (DNS) servers, wherein the pseudo DNS servers do not provide domain name-to-IP address translation;

crediting the first network device with accessing media when a domain name service query is received at the first pseudo DNS server from the public Internet protocol address; and

crediting the second network device with accessing media when the domain name service query is received at the second pseudo DNS server from the public Internet protocol address.

2. The method as described in claim 1 , further including generating at least one instruction document including instructions for configuring the first and second network devices, the instruction document indicating the association of the respective ones of the first and second network devices with the respective ones of the at least two pseudo DNS servers.

3. The method as described in claim 2 , further including transmitting the at least one instruction document to the panelist.

4. The method as described in claim 1 , further including configuring the respective ones of the first and second network devices to transmit domain name service queries to the respective ones of the at least two pseudo DNS servers.

5. The method as described in claim 1 , wherein the registration data from the panelist is received via an Internet interface.

6. The method as described in claim 1 , wherein the registration data includes an identification of the type of the first and second network devices.

7. A tangible machine-readable medium comprising instructions which, when executed, cause a machine to at least:

receive registration data from a panelist, the panelist being associated with a first network device and a second network device, the first and second network devices associated with a same public Internet protocol address; and

associate respective ones of the first and second network devices with respective ones of at least two pseudo domain name service (DNS) servers, wherein the pseudo DNS servers do not provide domain name-to-IP address translation;

credit the first network device with accessing media when a domain name service query is received at the first pseudo DNS server from the public Internet protocol address; and

credit the second network device with accessing media when the domain name service query is received at the second pseudo DNS server from the public Internet protocol address.

8. The machine-readable medium as described in claim 7 , further including instructions which, when executed, cause the machine to at least generate at least one instruction document including instructions for configuring the first and second network devices, the instruction document indicating the association of the respective ones of the first and second network devices with the respective ones of the at least two pseudo DNS servers.

9. The machine-readable medium as described in claim 8 , further including instructions which, when executed, cause the machine to at least transmit the at least one instruction document to the panelist.

10. The machine-readable medium as described in claim 7 , further including instructions which, when executed, cause the machine to at least configure the respective ones of the first and second network devices to transmit domain name service queries to the respective ones of the at least two pseudo DNS servers.

11. The machine-readable medium as described in claim 7 , wherein the registration data from the panelist is received via an Internet interface.

12. The machine-readable medium as described in claim 7 , wherein the registration data includes an identification of the type of the first and second network devices.

13. An apparatus for monitoring network activity, the apparatus comprising:

a registrar to receive registration data from a panelist, the panelist being associated with a first network device and a second network device, the first and second network devices associated with a same public Internet protocol address, the registrar to associate respective ones of the first and second network devices with respective ones of at least two pseudo domain name service (DNS) servers, wherein the pseudo DNS servers do not provide domain name-to-IP address translation, the registrar including hardware;

a query processor to credit the first network device with accessing media when a domain name service query is received at the first pseudo DNS server from the public Internet protocol address and credit the second network device with accessing media when the domain name service query is received at the second pseudo DNS server from the public Internet protocol address.

14. The apparatus as described in claim 13 , the registrar to further generate at least one instruction document including instructions for configuring the first and second network devices, the instruction document indicating the association of the respective ones of the first and second network devices with the respective ones of the at least two pseudo DNS servers.

15. The apparatus as described in claim 14 , the registrar to further transmit the at least one instruction document to the panelist.

16. The apparatus as described in claim 13 , the registrar to further configure the respective ones of the first and second network devices to transmit domain name service queries to the respective ones of the at least two pseudo DNS servers.