After finishing her degree she relocated to the Williamsburg section of Brooklyn, New York and created the website BurningAngel, a hardcore adult site catering to an emerging genre dubbed "alt porn" while she danced as a stripper at night. Her website followed in the footsteps of the very popular SuicideGirls — which she referred to as "the McDonald's of alt porn,". When asked whether she thought that alt porn was turning into a movement she stated "I think it's a movement. I think I've started something."

Joanna has written, produced, directed and starred in films available exclusively through BurningAngel, as well as appearing in more traditionally distributed adult films. She was under an exclusive contract with VCA Pictures which expired in March 2007, and was, at one time, represented by the adult talent agency Bad Ass Models.

Due to the success of BurningAngel, Angel has been featured in numerous magazines and newspapers, including an article written in The New York Times. She was nominated in 2006 for the AVN Awards for both "Best New Starlet" and "Best Actress", and although she won neither, she did take home the award for "Most Outrageous Sex Scene" for her appearance in Re-Penetrator.

She briefly wrote a monthly sexual-advice column for Spin. She also contributed a chapter to the book Naked Ambition: Women Pornographers and How They Are Changing the Sex Industry.