Senior Corps of Retired Executives (SCORE) at the Small Business Administration: http://www.score.org/index.html
In my experience the SCORE folks are big business men and know very little about small business.
An IRS agent that came around to bug me but was a very good guy said that SBS gave you enough money to hang you with. If you are a politically connected type, they might help.
I have operated small businesses for 40 years. Until recently, I always had at least two. My rule is stay one corporation ahead.