• Bond Allocation Tool from SmartMoney - figure out how much of your assets should be in bonds.
• Bond Calculator from SmartMoney - yield to maturity, etc.
• Bond Calculator from USA Today - "What is my yield to maturity?"
• Bond Calculator from USA Today - "How will rate changes affect my bond's current value?"
• Bond Calculator from USA Today - "Should I buy a tax-exempt or taxable bond?"

• Bond Basics from ABC News
• Bond Basics from Vanguard
• Bond Glossary from SmartMoney
• Bond Investing from Motley Fool
• Bond Investing from SmartMoney
• Bond Online's Bond Library
• Bond Primer from SmartMoney
• Bonds versus Bond Funds from SmartMoney
• Investing for Income from SmartMoney

• Corporate Bond Rates from DBC
• First Miami's Bond Yield Table
• Interest Rates from CNNfn
• Mortgage Bonds from DBC

• Bond News from SmartMoney
• Bonds Online
• ConvertBond.com - for convertible bond information.
• Moody's - the rating's agency

* If you need more help, you can check out these books on bonds & investing from Barnes & Noble. Stock Exchanges / Funds / Calculator / Brokers / Links / Day Trader / Zacks / Sector / Screen / Retire / Recommedations/ News Letters / Education / News / Bonds / Tech