Here are some free or nearly free sources of help--aside from the counseling. These are steps listed in the "Spouses of Sex Addicts" thread in the "I Can Relate" forum.
The SA must seek treatment with a CSAT (Certified Sex Addiction Therapist]
12 step meetings are mandatory for SAs.
Online resources for SAs:
Find a CSAT: http://www.sexhelp.com/sex-addiction-help/sex-addiction-therapists
Sexaholics Anonymous: (Recommended by most CSATS, more stringent definition of healthy sexual behavior) At this site there is information for the SA and spouse that may be helpful. http://www.sa.org/
SLAA: http://www.slaafws.org/ (for sex and love addicts)
Recovery Nation is an online community with online recovery workshops for both the SA and the spouse. (This should not replace seeing a CSAT (see below) and going to SA meetings (see above) for the sex addict but is a great addition to those things.) http://www.recoverynation.com
http://www.candeocan.com This is an excellent source of information. They focus on the porn aspect of SA.
Book Resources for SAs:
To fully understand SA you both need to do some reading. If he doesn't face his addiction you should still do the reading to help yourself and decide what you want.
Out of the Shadows: Understanding Sexual Addiction, by Patrick Carnes (workbook).
2. Recovery Zone, Patrick Carnes (workbook).
3. A Gentle Path, Patrick Carnes.
4. Hope and Freedom For Sexual Addicts and Their Partners, by Milton Magness.
5. Stop Sex Addiction, by Milton Magness.
6. Porn Nation by Michael Leahy, for SAs that are addicted to Porn.