This way the cost incurred on marketing has been cut down. In fact it is proving very beneficial to companies. Now, they can cover vast areas and market their product. In fact approximate cost to be incurred can also be estimated now. Because now companies can decide how much they are going to spend on various means of marketing. For example they can measure the cost per click or even per play. People can also be charged for money per permission to use a particular site for knowing about the product. Also, it is easy at the end of the consumer to know and compare various products and then decide to buy whatever suits their need. Also the shipment facilities are quick and the customer does not have to go half way across the globe or wait for the product to be launched in their country. It is a speedy and efficient method of marketing.
But every thing comes with its negatives too. As far as Internet marketing is concerned, the consumer can not feel or touch the tangible objects that they are about to purchase. So if you are planning to order a perfume or a dress, you can not expect to smell or touch respectively.
Also there are security concerns in this type of marketing. Often these marketing sites try to fool people and they don not provide reliable services.
Also these companies tend to leak out confidential information that they have as a part of their transactions, to other companies. Most of the times customers are not even aware of such things which are against the ethics of business.
So, overall the concept is helpful and helps to bring about the world together in the business world but always caution is to be exercised while making such deals.