In a single email, I may find a romantic, candle-lit dinner and a bikini-line laser hair removal.

FORBES: Are Group Deals Killing Brands?

For example, if it offers a deal on laser hair removal, the site provides detailed information on how well the service works for women with different hair color.

FORBES: CoupTessa: Two Guys Give Women What They Want

The figure is now about 60%, and costs have dropped the result of efforts to develop better laser printers, CD burners and even hair-removal devices.

ECONOMIST: Monitor