This are some of the free traffic source that can burst your business.
1.social network(this help introduce) your business to large number of people.
2. Search engine(all you need do is write some article and submit it to search engine and anyone that visit your link bring you a new visitor.
3. Signature(attaching your affiliate link on forums and others community can generate you a referrals
you can add your own ways of producing traffic if you have one.