Leighton Flowers, who does great work against Calvinism, has posted a very good video:
Porn & Free Will @The Provisionist Perspective
I am glad that Leighton defeated his porn addiction and replaced it with something more healthy, even if I think his theology is still "out of whack" (though not as much as it would have been when he was a Calvinist!) unlike a certain anti-Mormon Calvinist who, assuming he has stopped (though if he continues, it would explain his behaviour . . . ) has replaced his porn addiction with being a rabid anti-Mormon.
For more against Reformed theology, see:
An Examination and Critique of the Theological Presuppositions Underlying Reformed Theology