Where can I go to get IRB approval?
Most university IRB's won't involve themselves in research that isn't conducted by employees and students of the university.  The alternative (widely used by pharmaceutical companies) is an "independent IRB" (the term is an oxymoron since the IRB isn't part of the institution that is doing the research...)  

See the consortium of independent IRB's web site for some information about these IRB's.

http://www.consortiumofirb.org/