untangling_the_web

DOClD: 4046925
UNCLASSIFIEDNFOR OFFl61AL l::JSE ONLY
~ Public information on the deep web is at least 400 to 550 times larger than
the commonly defined World Wide Web.
~ The deep web contains 7,500 terabytes of information compared to nineteen
terabytes of information in the surface web.
~ The deep web contains nearly 550 billion individual documents compared to
the one billion of the surface web.
~ More than 200,000 deep websites presently exist.
~ Sixty of the largest deep-websites collectively contain about 750 terabytes of
information-sufficient by themselves to exceed the size of the surface web
forty times.
Therefore, it is vital to maintain a good set of bookmarks for a wide variety of
research tools beyond search engines. Specialized search tools-database finders,
email lookup tools, and online telephone and fax directories-are good first additions
to a robust set of research tools.
If you don't want to "be found,"
never post to Usenet newsgroups.
Once you do, expect
to be spammed and to appear
in directories, such as email
lookup databases. Your only
real solution at this point is to
get a new Internet account.
UNCLASSIFIEDiiFO~ OFFlelAL l:ISE eNLY 307