15. The method of claim 6 , further comprising: receiving, from the client computing device, a request for the first content page; and retrieving, from a first content source, the first content page on behalf of the client computing device.
15. The method of claim 6 , further comprising: receiving, from the client computing device, a request for the first content page; and retrieving, from a first content source, the first content page on behalf of the client computing device. 16. The method of claim 15 , further comprising: transmitting, to the client computing device, the differing opinion data in conjunction with the first content page.