If you are looking for more information and resources about ACT (Acceptance and Commitment Therapy) here are some links of interest.
The ACT website
ACT: Association for Contextual Therapy
New Harbinger ACT Professional Resources
New Harbinger ACT Self-Help Resources
Continuing Education Units for ACT
‘ACT for Anxiety Disorders’ — Clinician’s Manual
‘Get Out of your Mind and into Your Life’ — this is the most famous best-seller on the subject.