Most businesses nowadays uses online marketing services to increase their exposure to the consumer in general. It is an effective way of advertising since most of the consumers these uses the internet in searching for the things that they need and want to buy. Internet is also their main source of price comparison and other factors that affect buyer's decision such as reviews and ratings of former customers.
There are so many online companies that offers online marketing services such as search engine optimization, link building, social media and more. The prices are affordable compared to the price that you will pay if you will opt to advertise on TV or in any other types of media. You can also find free link building tools by searching the web if you just want the free ones.