Below are some free ways to promote your reseller hosting
Patience:
Be patience. Do not lose motivation while promoting your business. Consistent work with devotion will result in success.
Forum posting:
join webmaster forums, answer hosting relevant questions also you can announce packages and plans weekly. Announce special offers and promotions to attract new customers, such as announcing 10 % off for first ten people.
Social Bookmarking:
Social bookmarking can help you to introduce your new offers and packages to outside world.
Article Marketing:
Article marketing is extremely useful for serp ranking. Write helpful quality content for outside world. Introduce your company in resource box and invite users to buy your hosting plan.
Social Network:
Promote your website on social networks, introduce in your local community. Word of mouth has much potential.
Quality Services:
Once you have clients, be attentive and carefull to your clients. Respond the tickets timely and help them at your earliest.
Reseller web hosting has big potential, you can earn allot with constant work. Do not invest high amounts initially, buy an affordable package to save your cost. I would suggest you to check Shopaserver Reseller plan to save cost. They have remarkable offers in cpanel hosting and reseller plans.