There are many different ways to advertise, so I suggest looking at the alternatives before you start as it depends on what business you are in.
There is a good site which gives you an overview of the different types such as AdSense, AdWords, Affiliate Marketing, Article Marketing, ClickBank, Copy writing, Email Marketing, Internet Marketing, Business Models, Outsourcing, Market Research, SEM, SEO, Time Management and Traffic Generation.
Have a look and decide which you suits you and your business, as there is no point in using a marketing method you are not comfortable with. Then focus on one method and make it work.
Internet marketing is one area where the experts will all have their own preferred method and will tell you all the reasons why other methods do not work.
Best wishes
Clive