AdWords is Google's paid advertising product. Google AdWords is an online advertising service that places advertising copy at the top, bottom, or beside, the list of search results Google displays for a particular search query.

Google Adwords Terms Understanding :

1. CPC (Cost Per Click)

    CPC, also known as Cost Per Click, is how much Google AdWords charges you when someone     clicks on your ad.

2. Maximum CPC

    Maximum CPC is an amount you are willing to pay at maximum for a click on your ad.

3. Impressions

    Impressions is the number of times your ad has been displayed for each keyword.

4. CTR (Click Through Rate)

    CTR, also known as Click Through Rate, is a percentage generated by AdWords for each     keyword - it is calculated based on the following formula:-

(Number of Clicks / Number of Impressions) * 100 = CTR (in percentage)

The higher your CTR is, the more relevant Google think your ad is, and as such, over time, as your CTR increases, Google AdWords will charge you lower per click when someone clicks on your ad.

5. Quality Score (QS)

Quality Score is a score that's calculated by Google AdWords based on a number of factors - the quality of your destination page , your keyword's CTR, maximum CPC that you've set, etc.

Keywords - Google Adwords

There are 4 main keyword types in Google Adwords :-

1. Broad Match Keywords
2. Phrase Match Keywords
3. Exact Match Keywords
4. Negative Match Keywords

Search & Content Network Target :-

Your Ads to appear in

1. Google Search
2. Search Network
3. Content Network

Pay Per Click or Google Ads advertising is obviously a huge part of Internet Marketing. And it looks like it might be a huge part of off line marketing as well.