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Pay Per Click Search Engine Basics
Pay per click search engines let you set
up an account with an initial deposit, and then bid for the top
positions in the search results pages for keywords or keyphrases that
you are interested in. Your bid will typically be set in cents or
dollars per click.
When a prospect clicks on your link, you
are charged the amount of that bid.
Naturally, the keyphrases that
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Free Scientific Content ?
Sign an open letter to publishers
27th March 2001
Scientific research should be freely available
within six months from publication, claim advocates.
Over 12,000 scientists from 120 countries are
joining forces to call for scientific information to be made publicly available
in central databases.
By joining online the Public Library of Science, scientists support that free
literature will "increase the accessibility and utility of the scientific
literature, enhance scientific
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