I just came across the fourth part in a series called This Web Business from A List Apart. I read through the four parts and another article by the author, and they are definitely worth reading if you run a business on the web. Here are the parts:
Part one: A Simple Plan -- on putting together a business plan.
Part two: Getting a Loan -- on the benefits and methods of financing your business.
Part three: Selecting Professionals -- on finding accountants, attorneys, financial institutions, and registered agents.
Part four: Business Entity Options -- on the benefits and detriments of different types of business forms.
In addition, the author of those articles has also written another article for A List Apart called In Praise of Contracts, which offers some really good advice.