• The Office for the Community & Voluntary Sector has a comprehensive list of New Zealand research into volunteering. Includes a "volunteering research stocktake".

          http://www.ocvs.govt.nz/work-programme/encouraging-participation/volunteering-research/index.html

• SPARC (Sport & Recreation New Zealand) have some research about sports volunteering on their website.

          http://www.sparc.org.nz/sport/volunteers/contribution

• The American Sociological Association also has volunteering related research on their site but it takes a patient and competent researcher to locate it (and some articles are only accessible by members).

          http://www.asanet.org

• The American Psychological Association's website is worth a look, too (best for the patient and experienced researcher).

         http://www.apa.org

• One interesting article on the above site is "The motivations to Volunteer: Theoretical and Practical Considerations" (1999). It includes a list of further reading on the topic.

          http://www.apa.org/monitor/dec06/helping.html