Delaware County, PA Chamber of Commerce — Information on Chamber programs including seminars, expos, legislative information, business start-up material, networking opportunities, and more.

U.S. Small Business Administration — A comprehensive “Small Business Planner”, information on SBA business financing assistance, and more.

U. S. Business Advisor — A service of the U.S. Department of Commerce, this site provides access to authoritative business, trade, and economic information from across the Federal Government.

Internal Revenue Service (IRS) — Federal tax information for businesses.

Pennsylvania Department of Revenue — State business tax information and forms.

Pennsylvania Open for Business — Informational resources, financing programs, forms, publications and online business registration for Pennsylvania companies.

Starting a Business in Upper Darby — Overview of procedures, licenses and regulations in Upper Darby,

Ben Franklin Technology Partners — Information on financing available to technology-oriented companies in Pennsylvania.

PASourceNet Business Directory — Provides Pennsylvania businesses with supplier and sales leads, international trade leads and other useful information.

BizStats.com — Useful statistics for small businesses compiled data from trade associations and government agencies.

Business Owner’s Toolkit — Thousands of pages of information and tools to help you start, run and grow a successful small business, compiled by CCH, Inc.

Inc.com — Current articles and other information on small business issues from the pages of Inc. magazine.

Kauffman eVenturing — Information and advice “written by entrepreneurs for entrepreneurs” compiled by the Kauffman Foundation.

NetMBA Business Knowledge Center — Business knowledge resources on a wide range of topics provided by the Internet Center for Management and Business Administration.

Financial Projections Model — SCORE's Activeplans spreadsheet model template for developing an integrated set of financial projections.

Financial Model Notes — Explanatory notes for using SCORE's Activeplans financial model template.