PPC = Pay Per Click 每点击付费 (广告发布者只需要对有效点击付费).
EPC = Earn Per Click 每百次点击产生的收益 ( CJ 里考虑产品是否值得推广的一个因素)
ROI = Return On Investment 投资回报率
CPM = Cost Per Thousand Impressions 千次显示支付
CPC = Cost Per Click 点击支付
CPA = Cost Per Action 行为支付 (affliliate联盟也叫 cost per acquisition )
CPL = Cost Per Lead (引导注册支付)
CPS = Cost Per Sale (销售支付)
CTR = Click Through Rate (点击比率)准确一点是点击与显示比率