Presentation on theme: "Effective Internet Searching. Why use the Internet Search for a question Research a topic Current research Variety of sources, a click away What other."— Presentation transcript:
Why use the Internet Search for a question Research a topic Current research Variety of sources, a click away What other non-online resources? –Encyclopedia, book, dictionary, Atlas, World Almanac
Search Engines Collects copies of web pages from various host servers Assembled into a data base Displayed according to relevancy and rank Search engines use a program to search and retrieve web sites; spiders/crawl the web thru links Algorithm to determine rank; company ‘trade secret’ Google, Ask Jeeves, AOL Search, AltaVista, MSN SearchGoogleAsk JeevesAltaVista
Internet Guides Index or directory of websites Classified by subject categories Organized by humans and not computer programs/algorithms Yahoo, Librarian’s Internet Index. EBSCO host, librariesYahooLibrarian’s Internet IndexEBSCO host
Four Search Strategies Keyword Searching Boolean Question Advanced
Keyword Searching Enter terms to search Use quotation marks to search as a phrase and keep the words linked together Common words are ignored (that, to, which, a, the, …) + and – can be used to include or exclude a word
Boolean Searching - AND Enter words connect with AND - it will include sites where both words are found Uses: joining different topics (ie. “global warming” AND California presidentWashington
Boolean Searching - OR Enter words connect with OR - requires at least one of the terms is found Uses: join similar or synonymous topics (ie. “global warming” OR “greenhouse effect”) dogs cats
Boolean Searching - NOT Enter words connect with NOT – searches for the first term and excludes sites that have the second term Uses: join similar or synonymous topics (ie. Washington NOT school) Washington school
Boolean – (Nesting) and Near In a string of searching, terms placed in parentheses are searched first Parentheses must be used to group items if there is another Boolean operator being used NEAR may be used to require words to be found within 16 words of each other in the pages returned
Question Searching A question may be entered in the search field of a search engine. Ask Jeeves is a search engine that encourages the use of question searchingAsk Jeeves
Advanced Searching Advanced search features are offered on many engines by going to an “Advanced Search” page and making selections This is effective in narrowing search returns to a specific topic or phrase Google Advanced Search
Getting’ it – Do you? What is the difference between a Search Engine and an Internet Guide? Why do search engines return different results for the same search query?
Getting’ it – Do you? Which Boolean search term broadens a search? Which Boolean search term narrows a search? What built-in tool in most search engines is helpful in narrowing a search?