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Unit 12: Online Information Services

• AltaVista: A fast and powerful engine with advanced Boolean capabilities. Its database (full
text of Websites) is best when looking for hard-to-find information (www and usenet). Notes
• HotBot: A powerful search engine that allows basic Boolean features. It also provides a pleasing
user interface (www and usenet).
• OpenText: Another powerful search engine with a full set of Boolean operators. Its strength is
the ease of searching its full text database of the Web (www only).
• Lycos: One of the search engine pioneers since 1994. It provides good listings of search results,
and allows users to search more than just the Web (www, FTP, Gopher).

Self Assessment

Fill in the blanks:
1. Boolean logic is also known as ...... .
2. Boolean operators was invanted in the 1800s by ...... .
3. Libraries have opportunity to develop new services and improve library provision using
...... .

12.4 Summary

• Libraries have increasingly become more complementary to the Internet over the years. Cur-
rently there are many ways to take advantage of the library services that are offered online in
your community.
• Most library databases online include abilities to search by title, author, keyword, or directly.
• Internet Search Engines are a quick and simple way to access information on the World Wide
Web.
• The use of search engines has allowed libraries to augment their traditional core services.
Many libraries have developed an effective ‘virtual’ presence through their websites.
• Libraries have opportunities to develop new services and improve library provision using
internet search engines.
• Google Books presents a number of difficulties for libraries, particularly in terms of copyright
and proprietary issues.
• Boolean logic, also known as Boolean algebra, is a method for describing a set of objects or
ideas.
• One of the most recent uses of Boolean logic is in search engines. By using the operators AND,
OR and NOT you can effectively communicate exactly what you are looking for to the search
program.

12.5 Keywords

Google Books: Google Books presents a number of difficulties for libraries, particularly in term of
copyright and proprietary issues.
Boolean Operation: Boolean logic, also known as Boolean algebra, is a method for describing a set
of objects or ideas.
AltaVista: A fast and powerful engine will advanced Boolean capabilities.

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