The Google Adwords advertising platform is probably the best online marketing tool there is based on market size. Google is the premier name in search engine technology and their AdWords tool can quickly get your message right in front of the people who are most likely to buy your product or service.
In the world of online advertising a new lexicon has been forged, and while it is different to traditional advertising, it isn't illogical. AdWords is not inherently difficult to understand, although it is certainly nuanced.
Using Google's AdWords can add a lot to your marketing presence. If you are able to optimise it to your needs it can make a huge difference to your marketing strategy.