Record your original music using home recording machines or software. Many computers now offer free recording software.
Decide if you're satisfied selling CD-Rs or if you prefer to pay a company to press your music onto professional discs. Alternatively, you may consider uploading your music to flash drive and selling that as many listeners are now storing music digitally.
Design your disc or drive's packaging.
Create a social networking account exclusively for your music project. Try to pick the current most popular social networking site.
Research the available third party applications that allow you to sell music. There is a variety out there and they're designed to be compatible with the most popular social networking sites. Just be sure they don't charge a registration fee.
Connect the application of your choice to your social networking site and make an effort to spread the word about your project.
Register an account with Bandcamp.com for your music project. It's free.
Upload your original music. This site allows you to set your own price so you can charge nothing, charge a 'per-track' fee, or even allow listeners to set their own price.
Promote you Bandcamp account by publishing links to any other social networking accounts or websites you administer. Be sure to also connect with other artists through Bandcamp itself.