An effective pay per click marketing campaign can provide your site with almost instant visitors and needn't cost the earth – a Google Adwords account can be set up for as little as $5. A pay per click marketing campaign puts your ads in the enhanced listings on search engine pages and on affiliate pages of the pay per click network.
The start of your pay per click marketing campaign should be selecting the keywords which are going to sell your site. A site well prepared should already have some which you have chosen before submitting for the standard search engine listings. If not, a keyword tool such as Adwords Keyword Planner and a bit of research on your competition will help you to find them.
These keywords are where the pay per click part comes in. Each time your ad is displayed as a result of a search for one of your keywords, you only pay if a click is made on your ad, not just for it appearing.