CAcert's Arbitration Forum
CAcert has a WIP policy [http://svn.cacert.org/CAcert/dispute_resolution.html Rules of Dispute Resolution] which are the defining rules of the Forum, once approved. Also, see the [http://svn.cacert.org/CAcert/RegisteredUserAgreement.html Registered User Agreement] which includes the key clause to agree to Arbitration.
Further Reading
For introductions, try:
Wikipedia on [http://en.wikipedia.org/wiki/Arbitration Arbitration].
International Framework
Arbitration operates to an international framework:
Wikipedia on [http://en.wikipedia.org/wiki/Convention_on_the_Recognition_and_Enforcement_of_Foreign_Arbitral_Awards 1974 New York Convention] on foreign awards.
Wikipedia on [http://en.wikipedia.org/wiki/International_arbitration International aspects] of arbitration, and why it makes sense for a global organisation such as CAcert.
Australian Law -- Choice of Arbitration Clause
Law of NSW, Australia is the choice within the agreement, reflecting CAcert's origins. This suggests that reading the Australian and NSW acts on Arbitration is a good start for deep research.
Introduction to [http://www.caslon.com.au/adrprofile1.htm Australian Law on Arbitration]
[http://www.austlii.edu.au/au/legis/cth/consol_act/iaa1974276/ The Arbitration Act of 1974] is the Federal law
[http://www.austlii.edu.au/au/legis/nsw/consol_act/caa1984219/ Commercial Arbitration Act 1984] is NSW law which also applies.
Others....
Should research EU models and USA.