Google AdWords serves as Google’s primary revenue generator through PPC (Pay-Per-Click) advertising. In simple terms, advertisers on AdWords compete by bidding on keywords relevant to their ads. Google then decides which ads to show and where to position them. This decision depends on factors like the ad’s Quality Score (which measures how relevant the ad is, mostly based on its click-through rate) and the advertiser’s bid – the amount they’re ready to pay for each click on their ad.
Think of this process as an auction-like system.

How can you join the auction? First, you make a list of words that relate to your business. These words are what people use to find things like what you offer. You find these words by doing research or using tools that tell you what words people search for when they want things similar to what you have.