I stumbled across this fascinating article from WSJ.com recently and thought you'd probably be very interested in it too:
Websites Vary Prices, Deals Based on Users's Information
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Everything you always wanted to know about Web surfing in easy to read, jargon free language: Must-see sites, quick Web tips, sites especially for seniors and more!
surfactant | |
Definition: | A chemical agent capable of reducing the surface tension of a liquid in which it is dissolved. |
Synonyms: | wetting agent, surface-active agent, wetter |
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