The emergence of search engines and directories which cater
only to this (sizeable) market segment was to be expected. By
far the most comprehensive (and, thus, less discriminating)
was Deja. It spidered and took in the exploding newsgroups
(Usenet) scene with its tens of thousands of daily messages.
When it was taken over by Google, its archives contained more
than 500 million messages, cross-indexed every which way and
pertaining to every possible (and many impossible) a topic.
Google is by far the most popular search engine yet, having
surpassed the more veteran Northern Lights, Fast, and Alta
Vista. Its mind defying database (more than 1.3 billion web
pages), its caching technology (making it, in effect, one of
the biggest libraries on earth) and its site ranking (by
popularity and links-over) have rendered it unbeatable. Yet,
its efforts to integrate the treasure trove that is Deja and
adapt it to the Google search interface have hitherto been
spectacularly unsuccessful (though it finally made it two and
a half months after the purchase).
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