CAPITAL ACCOUNTING PARTNERS offers this list of websites that relate to cost principles and local government finance.
FEDERAL ACCOUNTING GUIDELINES
2 CFR Part 225 (codified OMB Circular A-87)
Governmental Accounting Standards Board
Financial Accounting Standards Board
Cost Plan Procedures for Counties
SCO Claiming Instructions
Commission on State Mandates
State Controller's Reports
Cities
Counties
Associations
Association of Government Accountants
CA County Auditors Association
CA State Municipal Finance Officers
CA State Municipal Revenue & Tax Association
CA State Municipal Treasurers Association
CA State Association of Counties
League of California Cities