One way that you can use is to utilize the facility online forum where Internet users can come together and discuss activities or interests they can share. There are many online message boards or forums that allow participation of members to have what is called a signature. Signature is a block print that always appears at the end of a post member.
Another way to market their online business is to join a pay-per-click advertising programs, such as Google Adwords. The advantage of this PPC program is you only have to pay from any clicks on your ads so you can set yourself a budget you will spend.
You may also be able to do what is known as a link exchange. A link exchange is when a website owner, agree to display the online website link or banner for another web site owner, free of charge, as long as they do the same thing for you. If you are looking for free or low cost ways to market your small online business, a link exchange may be the perfect choice for you.
But you should not exchange links with your competitors to market similar products. The most good if you are exchanging links with web sites that are relevant to your products do not compete but complement each other so that they can.