Ad words will help promote businesses because with ad words more potential clients will see your product or services. If more potential clients know about your product or service, more are inclined to buy it.
Google Adwords has been shown to be extremely trustworthy and reliable. It has shown to increase traffic to websites that participate in the program. It is a PPC ( Pay Per Click) Program so companies...
This is a place where you advertise anything that you want to sell or buy. Anyone can use this program to display anything they want to get customers who are willing to buy.
You can find out how much it cost by going to an online cost estimator. There is no minimum cost and you only get charged if someone clicks on your ad.
It would seem in my opinion it's a mixture of local and on-line advertisements. But at the same time I receive advertisements for other states/countries.