This is a sample of locked article. You can earn money with your articles by locking some of the contents of the articles e.g. download link, short story, tutorial, access code etc. The reader will then be able to unlock the locked section after paying. The rest of article below is locked, you will get the access after the purchase. To test this feature, use the PayPal sandbox account below on checkout: Username: sb-eg243r25937062@personal.example.com Password: ASDF1234...