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Information Literacy for Policy Makers and Influencers UNIT 3: SEARCHING FOR INFORMATION ONLINE THE INTERNET AND THE WORLD WIDE WEB Many people use the terms Internet and World Wide Web (or just ‘the web’) interchangeably, but in fact the two terms are not synonymous. The Internet and the Web are two separate but related things. The Internet is a Big Collection of Computers and Cables. The Web is a Big Collection of Web Pages on the Internet. To get connected to the Internet you need: 1. A computer- may be a notebook, a desktop, etc. 2. An Internet service provider (ISP) 3. A modem- a telecommunication device that allows you to connect your computer to another or to a network of other computers. 4. Communications software- Web browsers and connectivity software. Web browsers allow you to access information on the Web e.g. Internet Explorer, Netscape, or Mozilla SEARCH TOOLS There are different types of search tools including: Live search engine Automatically searches the Web for the search string (or words) you have typed in. There is NO human indexing. It often returns you LARGE lists of results, but because it uses keyword matching only, the RELEVANCE may be lower, and the list of results includes very brief information for each Web site listed (making it harder to sift through for what you are after). It usually gives you up-to-date results, and many give you the option (in 'Advanced Search' screens) to only search for a Information Literacy for Policy Makers and Influencers particular date range. Good examples of LIVE Search Engines include Google, Bing or AllTheWeb. Directory/Subject Gateway Organizes pre-selected Web sites into subject areas. Directories are created by human indexing. It allows you to search for 'search strings' or words, just like a LIVE Search Engine, but will also let you click through a menu (or a hierarchy) to find information on your topic. For example, you could select more specific subjects, like: Computers - - Internet - - Web development - - Web graphics. It usually gives you a SMALLER results list, but the results will be much more SPECIFIC for your topic! It is compiled and indexed by humans (which takes time) the information retrieved is often not up-to-date. Good examples of a DIRECTORY or Subject Guide include Google Directory and Eldis. Meta-search engine Searches other Search Engines. It will search several LIVE Search Engines (such as Google, Yahoo and Ask Jeeves) at the same time. It gives you a small result - usually 5-10 results - from each Search Engine looked at. It is fully automatic. There is NO human indexing or involvement in a Meta tool. It allows you to do a QUICK and BROAD browse of what information may be on the Internet for your topic. It is as up-to-date as the LIVE Search Engines that it uses. Good examples of a META Search Engine include Dogpile and Metacrawler. SEARCH TECHNIQUES Boolean operators are AND, OR and NOT. Some search engines use a minus sign (–) instead of NOT. These operators are used to combine search terms when doing research. Information Literacy for Policy Makers and Influencers You can also use brackets to combine boolean searches. You can use inverted commas to find phrases. Finally you can use truncation to find related words REMEMBER- some search engines are cleverer than others! For example, if you search for contain on google, it will automatically also search for contains, container, containment etc. If you search for multiple words on google, it may still give you a result which is missing one word if it seems to be relevant. Other search engines and databases will ONLY search for exactly what you have entered. You need to experiment with each search engine to find out how to use it best TIPS AND TECHNIQUES Bookmarking allows you to save a webpage location so you can easily come back to it. Map websites can help you find locations. Google translate allows you to search for information which is in other languages. Wikis (including Wikipedia) allow many people to share and combine their knowledge- but always check the accuracy of facts!