US20090248513A1
patent
(US) Correspondence Address: Co-performance measurements can be determined for a plu rality of content items, each co-performance measurement
22 claims. 58,701 characters of text.
patent
(US) Correspondence Address: Co-performance measurements can be determined for a plu rality of content items, each co-performance measurement
22 claims. 58,701 characters of text.