How Companies Are ‘Defining Your Worth’ Online
http://www.npr.org/2012/02/22/147189154/how-companies-are-defining-your-worth-online
Questions:
1, Do you receive any unknown-origin advertisements when you enter in a website or open your email account?
2, Are you interested in the advertisements?
3, Are they related with the information you searched recent days?
4, Have you ever clicked any of them before? Are they useful for you?
5, If they are helpful for you, have you ever think about that how do the website or email company know what you want?

New Words:
Sophisticated:
adjective
1. (of a person, ideas, tastes, manners, etc.) altered by education, experience, etc., so as to be worldly-wise; not naive: a sophisticated young socialite; the sophisticated eye of a journalist.
2. pleasing or satisfactory to the tastes of sophisticates: sophisticated music.
3. deceptive; misleading.
4. complex or intricate, as a system, process, piece of machinery, or the like: a sophisticated electronic control system.
5. of, for, or reflecting educated taste, knowledgeable use, etc.: Many Americans are drinking more sophisticated wines now.

ubiquitous[yoo-bik-wi-tuhs]
adjective
existing or being everywhere, especially at the same time; omnipresent: ubiquitous fog; ubiquitous little ants.

grail
noun
1. ( usually initial capital letter ) Also called Holy Grail. a cup or chalice that in medieval legend was associated with unusual powers, especially the regeneration of life and, later, Christian purity, and was much sought after by medieval knights: identified with the cup used at the Last Supper and given to Joseph of Arimathea.
2. ( sometimes initial capital letter ) Informal . any greatly desired and sought-after objective; ultimate ideal or reward.

murky
adjective, murk·i·er, murk·i·est.
1. dark, gloomy, and cheerless.
2. obscure or thick with mist, haze, etc., as the air.
3. vague; unclear; confused: a murky statement.

Silo
noun, plural -los, verb, -loed, -lo·ing.
noun
1. a structure, typically cylindrical, in which fodder or forage is kept.
2. a pit or underground space for storing grain, green feeds, etc.
3. Military . an underground installation constructed of concrete and steel, designed to house a ballistic missile and the equipment for firing it.
verb (used with object)
4. to put into or preserve in a silo.

ramification
noun
1. the act or process of ramifying.
2. a branch: ramifications of a nerve.
3. a related or derived subject, problem, etc.; outgrowth; consequence; implication: The new tax law proved to have many ramifications unforeseen by the lawmakers.
4. Botany .
a. a structure formed of branches.
b. a configuration of branching parts.