Create a piece of vector art using desktop publishing software, such as Adobe Illustrator or CorelDraw.
Sign up for an online photo sharing microstock site such as Fotolia, VectorStock or DeviantART. You will have to provide the site information where they can contact you if a sale has been made. Generally a phone number and email address are needed. Signing up for an account will also include accepting the site's terms and licensing agreements.
Enter an account number where payment can be made to you in the event your vector art sells. Generally most sites allow you to input your PayPal account or bank account information.
Upload the vector art you wish to sell and set a price within your online photo sharing microstock site account.
Confirm the price you set for your art. When your art has been sold, you will be notified by email and the photo sharing site will send payment. Refer to your microstock agency's website for more information on how payment is sent and how long it will take to receive your money.