History is being made in the 15 markets that comprise BUILDER magazine's list of the weakest in the nation. (Last week, BUILDER listed the 15 healthiest markets. Although virtually every major metro market took a blow last year, the weakest markets were decimated by an unprecedented and lethal combination of job losses, falling home prices, and rising foreclosures.

The fundamentals are so poor in many of these markets that they are likely to be among the last to recover from the national housing downturn. As you'll find in the list, the weakest markets for 2009 are comprised primarily of bust markets in Florida and California, along with a few rust-belt cities with longer-term economic difficulties.

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