Pay Per Click Advertising
Pay-Per-Click Advertising is the method of having your ads show up when people search for your product, and only paying when the searcher actually clicks on your ad. An example of the ads that can show up for search are shown in a search on Google for 'cruises' below. The ads are highlighted in pink.

Pay-per-click is a bidding system, where the advertiser that bids the most appears at the top of the listings, and the second highest bidder second, and so on.
The trick to winning at the pay-per-click game is to make sure that you know which keywords are profitable for your business and that you find the point in your bids at which you get a profitable return-on-investment. This is a little more difficult than it seems, but it is possible and we can help you with it.
Other online advertising methods are Banner Advertising, Contextual Advertising, and Retargeting.