Try here to start out with:
www.cocpa.org/find_cpas/index.asp

Another option is to call some small social service organizations in your area (shelters, food banks, etc.) and ask them who they use.

How have you gone about finding an accountant to file the long form for non-profits taxes? We have asked at PTO meetings with no luck. We are from Metro Denver Colorado and if anyone can provide me with an idea about how to find an accountant, I would be grateful. :confused: