There are two very practical talk on the Family Matters podcast on the subject of pornography that we recommend taking the time to listen to. Part 1 & Part 2
Although not a Christian resource, Fight the New Drug provides a lot of good resources that raise awareness of the harmful effects of pornography using only science, facts, and personal accounts. They also have a 3 part documentary series that is freely available.
The following talk provides a step-by-step Biblical approach to help rid yourself of the problem of pornography:
Get Off the Roof! 