In the UK there's a great site I've used in a similar situation called
www.pcaw.co.uk (public concern at work). In the UK true whistleblowing has to be based on public interest and whistleblowers usually have to have exhausted internal avenues / complaints procedures etc.
In the USA I've looked at
www.whistleblowing.org. Don't know how reliable it is but it covers government and commercial employers.
Good luck.