Anyone considering how to invest for the long haul inevitably runs up against the allocation question. Advisers agree that only a well-balanced mix of asset classes -- stocks and bonds, foreign and domestic, small-cap and large-cap -- will protect your portfolio in all kinds of weather.

TheStreet.com's

Gregg Greenberg has put together five stories exploring the benefits of this strategy and how you might start to implement it yourself.

Stocks

Big-Caps, Big Questions

Who the Small-Cap Fits

Get Familiar With Foreign Stocks

Bonds

Bonds Can Corral Your Risk

Real estate and commodities

One Portfolio, So Many Choices