Starting a Business in Pennsylvania http://www.paopen4business.state.pa.us/

The Center for Entrepreneurial Assistance (CEA)
http://www.inventpa.com/default.aspx?id=6

Pennsylvania Small Business Development Centers (SBDC) network
http://www.pasbdc.org/

Small Business Administration
http://www.sba.gov/pa/phil/

SCORE - Councelors to America's Small Business
http://www.score.org

Quicken.com - Financing and managing your small business
http://www.quicken.com/small_business/

Mr. TradeMark- Fee-based Trademark Searches ($99)
http://www.mrtrademark.com

US Patent and Trade Office -
Trademark and Patent searching (free); Trademark, Patent, Copyright and ISBN applications (fees apply) -
http://www.uspto.gov/

PA Business Stuff (Rules, forms, unemployment, etc.) http://www.dli.state.pa.us/

PA Consumer Site/Commonwealth of Pennsylvania
(overlaps with business information) -
http://www.state.pa.us/

The IRS Site
(rules, forms and other fun IRS Stuff) -
http://www.irs.gov/

Pennsylvania and Small Business Politics
http://www.nfib.com/cgi-bin/NFIB.dll/jsp/issues/state/stateHome.jsp?stateList=PA

Entrepreneur.com
Learn about other entrepreneurs
http://www.entrepreneur.com/