Tip: To see what's in the MBA's Guide to Excel, first download and peruse the short introduction. Also, note that you need the starter workbooks zip file (see bottom of life) if you want to work with the models described in chapters 10 through 15.

Chapter 1: Introduction
Chapter 2: A Quick Primer on Using Excel
Chapter 3: A Quick Primer on Charting
Chapter 4: Statistical Analysis using Excel
Chapter 5: Financial Calculations using Excel
Chapter 6: Excel-based Business Modeling
Chapter 7: Sharing Excel Workbooks
Chapter 8: PivotTables and Pivot Charts
Chapter 9: Small Business Financial Manager
Chapter 10: Building a Business Planning Workbook
Chapter 11: Building a Profit Volume and Break-even Analysis Workbook
Chapter 12: Forecasting Sales and Cost of Sales
Chapter 13: Building a Capital Budgeting Workbook
Chapter 15: Building Asset Depreciation Schedules
Starter Workbooks zip file

Marketing Research
MarketResearch.com
provides product information on about everything.
MarketResearchArticles
www.audiencedialogue.org shows statistics used in media research. 
Forecasting Principles has information by cohort.
Research Paper

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