Corporate Bond Investing- Understanding the credit raters ratings

• Office of Securities- Department of Professional and Financial Regulation: State of Maine
• Maps of World Finance
• FINRA (Financial Industry Regulatory Authority)

Corporate Bonds

• Investing in Bonds
• Smart Bond Investing
• DBRS

Government Bonds

• US Savings Bonds
• About Government Bonds
• Financial Aid

Junk Bonds

• Investopedia
• The Financial Pipeline
• Library of Economics and Liberty

Muncipal Bond Investing

• Municipal Market At-A-Glance

Understanding the benefits of Series EE Savings Bonds

• Individual- Series EE/E Savings Bonds Tax Considerations
• U.S. Treasury- FAQs: Economy
• Publication 970 (2008), Tax Benefits for Education

Zero-coupon bonds

• investopedia
• SEC: Zero-coupon bonds
• Internation Herald Tribune