To give you an idea of how widespread the problem is, a new study to be published in the Journal of Finance and Quantitative Analysis finds that option volume in a specific stock begins to surge three days before unannounced analyst upgrades or downgrades of a company.

WSJ: Insider Trading's Smart Cheats

In the forthcoming October 2010 issue of the AAII Journal, AAII Founder James Cloonan suggests looking for stocks whose average daily dollar volume is at least four times larger than your planned position.

FORBES: Know When To Sell

The result, they claim in a paper that will appear this month in the Journal of Physical Chemistry, is a nanofibre material with an extremely high ratio of surface-area to volume.

ECONOMIST: Space-age soot

The role played by this north Wales seaside town in Margaret Thatcher's political development has been noticed before, in the Grantham Journal and her own memoirs, but today's publication of Margaret Thatcher's authorized biography (Volume One: Not For Turning) by Charles Moore gives new insight into events there in 1948.

BBC: Margaret Thatcher: The Road from Llandudno