How do I know if I have a problem with pornography addiction or compulsive sexual behaviors?

Specific Behaviors:
Having sexual websites bookmarked
Joining sexual websites to gain access to online sexual material
Searching for sexual material through an Internet search tool
Spending money for online or phone sexual material
Participating in sexually related chats
Using sexualized usernames or nicknames on the Internet
Masturbating while viewing sexual material
Accessing sexual sites from multiple computers
Taking increased risks online (giving out one's name and phone number, meeting people offline, etc.)
Experiencing significant physiological changes while visiting sexual Internet areas (e.g. increase in heart rate, sweaty palms)
Viewing more pornography, for longer periods of time, or seeking more hard-core pornography to get the same level of excitement as at first
Spending time planning when you can view sexual material
Spending inordinate amounts of time obtaining sexual material
Having online sexual affairs or encounters
Engaging in online fantasy that would be illegal if carried out

Continuing the Behavior In Spite of Negative Effects:
Neglecting important social, relationship, occupational, or recreational activities to view pornography
Continuing the behavior despite it having caused or having the potential to cause significant problems (such as legal risk, risk of job loss, interference with spiritual or religious life, relationship difficulties, financial problems)
Continuing the behavior in spite of family and friends expressing concern about your online behavior

Secrecy:                                                                                     Hiding the behavior from others (moving the computer monitor so others cannot see it, lying, using the computer at times when others aren't around, worrying about others finding out)

Attempts to Quit/Loss of Control:
Repeated attempts and promises to stop using pornography and consequent repeated failure
Wanting to stop but feeling unable to stop
After stopping viewing pornography, the desire to view it again gets stronger and stronger
Getting on the Internet for something else but ending up viewing pornography

Using Pornography to Deal with Emotions:
Using pornography as a reward; to escape, deny, or numb feelings; or to avoid problems

Negative Emotions Connected with Use
Feeling anxious, angry, or disappointed when unable to access pornography
Guilt or shame connected with pornography use
Punishing self for using pornography