“With 'posts' running in the millions, Internet message boards have become an ess…” — 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.

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

If you think Wall Street has a short memory, you're dead wrong. No, the folks who work on Wall Street, regulate Wall Street - and, above all, invest in its wares, notably its hedge funds - don't have a bad memory. They don't have any memory at all.

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