Bonds are boring. They are the beige minivan of the investment world. Yet, bond yields (which move inversely to prices) are hugely important. They determine lots of things: from how much companies and governments pay to borrow money -- to the rate you get on your mortgage. To help you navigate the complex world of interest rates, here are some free resources.
Mainstream financial advisors have made the idea of investment diversification a standard rule. But the better approach is to know the trend of markets -- not diversify for its own sake. Here's an example of how conventional investment wisdom can let investors down.