“If you think Wall Street has a short memory, you're dead wrong. No, the folks wh…” — Gary Weiss

At their worst, message boards can subject you to mindless braying or outright stock scams. But at their best, they provide meaty insights on just about every stock imaginable.

With 'posts' running in the millions, Internet message boards have become an essential part of the savvy investor's arsenal.

Shorts wager on price declines by selling shares that they have borrowed in the hope of buying them back at far lower prices.

The Amex has a long, often troubled, sometimes glorious history.