Pennsylvania Power Port (Pennsylvania's State Website) - State information for businesses and individuals.
SBA - The US Small Business Administration website.
SCORE - The Service Corps Of Retired Executives. A volunteer organization offering help and advice from experience for business owners.
IRS - The US Internal Revenue Service.
Online Women's Business Center - resources for women entrepreneurs.
FindLaw - Legal information for small businesses.
The Entrepreneur's Reference Guide to Small Business Information.