What is the Internet? The Internet is a computer network connecting millions of computers all over the world It has no central control - works through.
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What is the Internet? The Internet is a computer network connecting millions of computers all over the world It has no central control - works through the cooperation of network administrators
Jargon People use to talk about the Internet The Net Cyberspace The Information Superhighway The Online Community The Electronic Library Virtual Reality The Web
Benefits of using Internet Communication locally / internationally faster and more cost effective Long distance telephone charges eliminated by using e-mail Creates better informed staff/students with access to resources not otherwise available Good for advertising services / facilities offered by institutions/companies
Bookmarks / Favourites Bookmark your favourite URL’s for direct access with only a click
Search Engines Search engines help you to sort through the masses of information on the WEB Major search engines are: Google, Yahoo, HotBot
Which search engine is the biggest / best? Search engines are constantly evolving : competition is fierce Some handle boolean queries better e.g. Yahoo, MSN, Gigablast. Some better on relevance ranking e.g. Google Some more user friendly e.g. Ask Jeeves - but results not as good as larger search engines
Comparing search engines Very few standards in place Each search engine has own way of dealing with: – Boolean logic – Truncation – Phrase searching – Case sensitivity – Sorting by: date, site, categories, etc – Use HELP files
This website is periodically updated and groups the search engines by size Also compares search features By clicking on “Review” a complete update of search engine is provided
Information on Strengths, Weaknesses, Features, etc
General search requesting 4 terms to be present 1650 websites retrieved!
Google Scholar Retrieves more relevant and peer- reviewed documents Any articles from ejournals to which the University Library subscribes will be available in full text on-campus only
You can access Google Scholar from the Library Web page
Quality How up-to-date are the links? Is the resource full text? Is the Internet version of resource current, e.g. dictionaries How comprehensive is this site? Is the resource available from or pointed to by multiple Internet sites? Who is the author or producer? Was content developed by an academic institution/commercial enterprise with established reputation?
Quality (cont) Does resource stay current through regular updates or demonstrate on-going maintenance Was the content peer-reviewed by experts in field? What are dates of coverage ? Is any sort of bias evident? When was the Web item produced? When was the Web item last revised? Is contact information for author/producer included?
Conclusion The Internet is a rich source of information, which can be used to great advantage. However, because there is no control over the material that is placed on the Internet, evaluate any information very carefully. Main method of retrieving peer reviewed academic information is from computerized databases. e.g. Medline