Blue Book offers various “Best Of Networks”, as chosen by the advertisers and publishers of the world-wide performance marketing community. We offer the following: Best CPA Networks These are the Blue Book Top CPA (Cost-Per-Acquisition/Cost-Per-Action) Networks, as chosen by the advertisers and publishers of the world-wide performance marketing community. Best European & Asian CPA Networks These are the Blue Book Top European and Asian CPA (Cost-Per-Acquisition/Cost-Per-Action) Networks, as chosen by the advertisers and publishers of the world-wide performance marketing community. Best CPA Networks for Affiliates & Publishers These are the Blue Book Top CPA Networks for Affiliates and Publishers, as chosen by the advertisers and publishers of the world-wide performance marketing community. Blue Ribbon Panel Best CPA Networks for Advertisers & Merchants These are the Blue Book Top CPA Networks for Advertisers and Merchants, as chosen by the advertisers and merchants of the world-wide performance marketing community. Blue Ribbon Panel BestCPS Networks These are the Blue Book Top CPA (Cost-Per-Acquisition/Cost-Per-Action) Networks, as chosen by the advertisers and publishers of the world-wide performance marketing community. BestPay-Per-Call Networks These are the Blue Book Best Pay-Per-Call Networks.The rankings are driven by input from tens of thousands of online marketing professionals, voting for networks that have a track record of leadership, experience and trust.