Cost-Per-Click (CPC)

    Price model for online advertising.
    CPC = The price an advertiser pays each time a visitor click on the ad. 
    

Fixed Price

    Price model for online advertising.
    Fixed Price = The price an advertiser pays to be displayed on a website during a certain time period, e.g. a week.
    Number of visitors or clicks does not affect a fixed price during the campaign.
    

Cost-Per-Thousand (CPT) / Cost-Per-Mille (CPM)

    Price model for online advertising.
    CPT/CPM = The price an advertiser pays for thousand ad exposures (page views).