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This article explores different types of information resources, such as print materials (books, newspapers, magazines) and electronic resources (websites, search engines, subject directories), and provides tips on how to search for information effectively. It also discusses the importance of verifying information found on the internet and the concept of the Deep Web.
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“Knowledge is of two kinds. We know a subject ourselves, or we know where we can find information upon it.”Samuel Johnson (1709-1784)
Information resources • Print • Brochures • Publications (Reports, Newsletters, Briefs) • Newspapers • Magazines • Books • Electronic • Internet • E-mail • Websites • Search engine • Subject directory • Professional data base
Print Unpublished material Published material Personal author In press or Forthcoming Books: Edited book Dissertation Chapter in a book Scientific or technical report Journal Article Conferences
Electronic Internet CD-ROM Search engine Subject directory floppy Database on the Internet Homepage/Web site E-mail Blogs Journal article on the Internet
3 MAIN TYPES OF CARDS • Author CardTitle CardSubject Card The Clue of the Velvet Mask Mystery and detective stories • Keene, Carolyn. • The Clue of the Velvet Mask/ Carolyn Keene. • New York, Grosset, 1969c. • p. 177. ill.; 24 cm X 18 cm. • (Nancy Drew Mysteries) • When a gang that uses parties as a cover for robberies victimizes a masquerade party Nancy is attending, the teen-age detective switches identity with her girl friend to solve the case. • Mystery and detective stories. 2. Robbery/Fiction. I. Nancy Drew Mystery Series. II. Title • Keene, Carolyn. • The Clue of the Velvet Mask/ Carolyn Keene. • New York, Grosset, 1969c. • p. 177. ill.; 24 cm X 18 cm. • (Nancy Drew Mysteries) • When a gang that uses parties as a cover for robberies victimizes a masquerade party Nancy is attending, the teen-age detective switches identity with her girl friend to solve the case. • Mystery and detective stories. 2. Robbery/Fiction. I. Nancy Drew Mystery Series. II. Title • Keene, Carolyn. • The Clue of the Velvet Mask/ Carolyn Keene. • New York, Grosset, 1969c. • p. 177. ill.; 24 cm X 18 cm. • (Nancy Drew Mysteries) • When a gang that uses parties as a cover for robberies victimizes a masquerade party Nancy is attending, the teen-age detective switches identity with her girl friend to solve the case. • Mystery and detective stories. 2. Robbery/Fiction. I. Nancy Drew Mystery Series. II. Title
How to search in your library’s journals (English or Farsi)?
Search engines Subject directories Meta search engines Card catalogs Phone book Chemical abstract Science citation index …………. ………….
“Not all the information that exists in the world is on the Internet-- Not all the information that is on the Internet is accurate.”
An hour on the Web may not answer a question that you could find within two minutes of picking up a reference book.
What Do You Use To Search? • Search engines • Search directories • Databases&banks • others
What is Web site? A Web site is a collection of Web files on a particular subject that includes a beginning file called a home page. For example, most companies, organizations, or individuals that have Web sites have a single address that they give you. This is their home page address. From the home page, you can get to all the other pages on their site. For example, the Web site for IBM has the home page address of http://www.ibm.com.
World Wide Web (WWW) A technical definition of the World Wide Web is: all the resources and users on the Internet that are using the Hypertext Transfer Protocol (HTTP). "The World Wide Web is the universe of network-accessible information, an embodiment of human knowledge."
Definition browser A browser is an application program that provides a way to look at and interact with all the information on the World Wide Web. The word "browser" seems to have originated prior to the Web as a generic term for user interfaces that let you browse (navigate through and read) text files online. Internet Explorer Firefox, which was developed from Mozilla Flock Safari, Lynx Opera
Invisible Web The Deep Web (also called Deepnet, the invisible Web, DarkNet, Undernet, or the hidden Web) refers to World Wide Web content that is not part of the Surface Web, which is indexed by standard search engines. The Best search engines is only able to recover 16% of the information on the Web. Medical Resources on the Invisible Web FindArticles Medical Information OmniMedicalSearch MedicalStudent.com
علت ها :عدم توانایی روزآمد کردن اطلاعات عدم توانایی مالی برای نمایه نمودن تمام صفحات دلایل امنیتی مسائل فنی* اندازه وب نامریی تقریبا 500 برابر وب مریی است
Web 2.0 The term Web 2.0 is associated with web applications that facilitate participatory information sharing interoperability user-centered design and collaboration on the World Wide Web Examples of Web 2.0 include social networking sites, blogs, wikis, video sharing sites, hosted services, web applications and …
Databases&banks Digital library A digital library is a library in which collections are stored in digital formats (as opposed to print, microform, or other media) and accessible by computers. The digital content may be stored locally, or accessed remotely via computer networks. A digital library is a type of information retrieval system. کتابخانه مجازي مفهومي است بر بر مبناي دسترسي از راه دور به محتوا و خدمات کتابخانه ها و ديگرمراکز اطلاع رساني ، مرکب از مجموعه اي از منابع روزآمد و پر استفاده در قالب چاپي و الکترونيکي و به همراه شبکه الکترونيکي دسترس پذير به کتابخانه هاي جهاني و اطلاعات تجاري و منابع دانش به منظور کاربري و اشاعه آنها