If you have a good product or an efficient service to provide or offer the world, you need to master the act of selling and introducing it. And this is where advertising and marketing have become an essential part of the business. It is very important for you to know the tricks and hints of the world of selling. During the early times, most of the advertising agencies usually stick to the conversation method of advertising and even the newspaper advertising is used and even the television and radio. But because we are on a new era with high tech gadgets and access and of course we have the internet.