Each month auction gets run billion of times, and the result are such that users find ads that are relevant to what they are looking for. The search engine processes the request and runs the auction that determines the ad positions and each advertisers CPC.
By creating ads that match properly with keywords and create tightly themed ad groups, you can target users to the campaign that helps in conversions.
Once the advertisers determine the keywords that they want to bid on, Google will enter a keyword from your account which is most related into the auction with the maximum bid specified as well as the associated ad.
Limit for Adword is
☛ Description line 1st : 25 characters
☛ Description line 2nd: 35 characters
☛ Destination URL: 1024 characters
No images are allowed in URL.
After creating account Currency and Time Zone, cannot be changed.
Be honest. Remember, not everyone can do everything.
Ad rank plays a huge role in defining the actual cost-per-click that your opponents pay, when someone clicks on their ads. Your CPC can be calculated by following way
Your Price = The ad rank of the person below you/ your quality score + $0.01
Google's quality score determines how beneficial and relevant your ad is to the user, based primarily on your ad's CTR, quality of your landing page and keyword relevance. Higher quality score keywords will save your money and earn better ad ranking.
Avoid, "I would like the job you advertised." Instead, give long-range goals.
Cost per acquisition (CPA), also known as pay per acquisition (PPA) and cost per conversion, is an online advertising pricing model where the advertiser pays for each specified acquisition - for example, an impression, click, form submit (e.g., contact request, newsletter sign up, registration etc.).