Websites, such as Overstock.com, offer items for sale at a cheaper rate than you could find in a retail store and many other places online. If you want to sell items online as a supplement to your income, you can use Overstock.com as a drop-shipper so you do not need to maintain any inventory. Using a drop-shipper allows you to make money through sales without the risk of purchasing inventory that may or may not sell.

Fill out the online application to become an Overstock.com affiliate. You earn up to 7 percent of purchases generated from your website as an affiliate.

Create a website to sell the Overstock.com products on. Overstock.com reserves the right to deny or revoke affiliate membership based on objectionable content on your site. You can use any type of website, however, including forums, blogs and business websites.

Place the Overstock.com affiliate banner on your website when your application is approved.

Use the Commission Junction area of the Overstock.com affiliate website to add links to specific items or place Overstock.com graphics and logos on your website.