Cost Per Acquisition (CPA)

CPA – Acronym for Cost Per Acquisition (sometimes called Cost Per Action), which is the total cost of an ad campaign divided by the number of conversions. For example, if a campaign cost $100 and resulted in 5 conversions, the CPA is $20 ($100 / 5). It cost $20 to generate one conversion.

B2B

B2B – Stands for "Business to Business.” A business that markets its services or products to other businesses.

B2C

B2C – Stands for "Business to Consumer.” A business that markets its services or products to consumers.

Cost Per Click (CPC)

CPC – Acronym for Cost Per Click, or the amount search engines charge advertisers for every click that sends a searcher to the advertiser’s web site. For an advertiser, CPC is the total cost for each click-through received when its ad is clicked on

Click-Through Rate (CTR)

CTR – Acronym for Click-Through Rate, the number of clicks that an ad gets, divided by the total number of times that ad is displayed or served. (Represented as: total clicks / total impressions for a specific ad = CTR). For example, if an ad has 100 impressions and 6 clicks, the CTR is 6%. The higher the CTR, the more visitors your site is receiving; CTR also factors into you advertiser search engine Quality Score and, therefore, your minimum keyword bids on Tier I engines.