Questions to ask before you help a patron on the Internet
- What exactly is the question?
- What would a good answer look like?
- Is the public Internet or even the invisible web the best source to answer this question? [keep in mind everything that's NOT on the net]
- Do they want a set of relevant pages or an answer to a specific question?
- Are they looking for a set of really good sites on a topic?
- Do they want a little information or a lot?
- Are they looking for a kind of home on the net, with lots of information on their personal interests and a community of people who share their interests?
- Go where it is: ask yourself who, logically, would collect and offer that sort of information.
- Remember, the net is also a delivery system for magazines, newspapers and even full-text books. Should they looking through a database of full-text magazine and journal articles instead of web sites? If they don't have access to your licensed databases, MagPortal and FindArticles.com are free article databases)
- Remember that the net is a communication system. Might they want to talk to, or listen to, human beings in news groups, bulletin boards, or "Aska" sites (Ask a Priest, Ask a Doctor, etc.)?
What Can You Count on Finding on or by way of the Net?
- Pictures -- photos, art, animations, videos -- and sounds -- music, speeches, live webcasts, etc.
- FAQ files --frequently asked questions files created by experts in the field
- Primary sources -- maps, laws, court cases, statistics, public records
- Government information. Federal government information is almost totally online, and the states, counties and cities are getting there.
- Key word searchable files -- poetry, plays, laws, court cases, news files, and more.
- Interactive sources -- virtual patients, "ask an expert" sites, newsgroups and bulletin boards, interactive travel mapping, etc.
- Reference sources.
- Online courses. Faculty and students can see how someone else is teaching the same concept.
- Free and licensed databases [invisible web]
- News.
- The extremely obscure, because the net is where people share their private passions
What's the Difference Between Directories and Search Engines?
- A directory is smaller and more selective, like a library catalog, with items chosen for quality and cataloged by subject; search engines compete on the basis of the size of their indexes, not the quality.
- A directory is constructed by humans, while a search engine is a piece of software that searches its index of sites, gathered by bots, using weighting algorithms specific to the individual search engine.
Therefore -- use directories when you need quality and expert filtering, search engines when you want quantity, to make sure you don't miss anything.
Some Good All Purpose Directories
- Internet Public Library http://ipl.org/
- Librarians Index to the Internet http://lii.org/
- Scout Report Archives http://scout.cs.wisc.edu/archives/index.html -- over 10,000 reviewed sites, organized by topic
- Best Information on the Net http://library.sau.edu/bestinfo/
- About.com http://about.com/
ALL of these will lead you to good topical directories and search engines.
Helpful Sites That Will Answer a Lot of Reference Questions
- Bartleby http://bartleby.com/ -- full texts of quote books, almanacs, encyclopedias, classic poetry and literature.
- How Stuff Works http://howstuffworks.com/
- MedlinePlus http://medlineplus.gov/
- Polling Report http://www.pollingreport.com/ -- consolidates and archives polls on all kinds of questions, lifestyle as well as political
- Refdesk.com http://refdesk.com/
- SearchBug - The Most Useful Searches http://www.searchbug.com/
- Statistical Resources on the Web http://www.lib.umich.edu/govdocs/stats.html
- XRefer http://w1.xrefer.com/ -- searches through 50 online dictionaries, encyclopedias and quote books, for free.
What's the Difference Between Search Engines?
- How many pages they cover
- How they allow you to state your question
- How they allow you to refine your results
- How they prioritize their results -- collaborative filtering, word frequency and placement, pay for play, etc.
- Special features -- Babelfish, family filter, image search, clustering of results, etc.
- the Huh? factor -- sometimes search engines give you answers that leave you scratching your head
- individual search engine or metasearch engine
- percentage of the search engine market
- how well they fit the way your own mind works
SEE the results of head to head tests of search engines at http://searchenginewatch.com/
Some Good General Search Engines
- AltaVista http://www.altavista.com/ -- best for coverage of non-American web sites, translation feature, available family filter, full boolean searching in advanced search mode. Special searches: image, MP3/audio, video, directory, news. Advanced search options: full boolean, restrict by date, language, file type, domain, country, site collapse
- All the Web (formerly known as FastSearch) http://www.alltheweb.com/ -- comprehensive and fast; greatly improved search capability; currently indexes 2.1 billion pages, competitive with Google; offers specialized searches for news, pictures, videos, MP3, ftp; displays a search tip to the right of your results; displays related topics to the right of your results; allows you to customize your preferences. Allows searchScirus as an option.
- Ask Jeeves http://www.askjeeves.com/ -- tries to find pages that answer questions with your key words in them; if you don't like the answers, it suggests related searches and lets you see results from other search engines. Now includes buttons for news search, shopping search, browse by subject. Bottom of search results page gives you the search directory
- Google http://www.google.com/ -- Comprehensive, fast. Ranks by link popularity. Has a "more like this" feature; specialized search tabs for News, Groups, Images; sophisticated advanced search capabilities; clickable definition available with every search; topic specific search pages, including Google Uncle Sam, catalog searches, phonebook search; filtering available; special search operators link: related: intitle: allintitle: inurl: allinurl: info: site: stocks: . You can filter results by language, file format, date modified, domain, safesearch. Downloadable toolbar does neat things.
- HotBot http://hotbot.lycos.com/ -- advanced search offers control of every element of your search; Direct Hit shows you what most people chose when they searched that topic ("collaborative filtering"). Allows personalization. Annoying popups. Restricted searches for news, e-mail addresses, white and yellow pages, stock quotes, discussion groups
- MSN Search http://search.msn.com/ -- clarifies ambiguous search terms with "Popular related Topics," suggests related searches. Results include a "broaden your search" feature. Advanced search allows you to choose word stemming, where to look for search terms, region, language, domain, document depth, file extension, AV features
- SurfWax http://www.surfwax.com/ -- if you want to use a metasearch engine, use this one, with its site snap feature.
- Vivisimo http://vivisimo.com/
or this one, with its clustering feature.- Yahoo! search defaults now to a Google search of the web, but will still pull up categories if you tell it to search in Directory. Best use for Yahoo! is as a directory or for specialized searches (auctions, classified, careers, people search, yellow pages, chat, etc.)
General Search Tips
- Different kinds of searches require different kinds of strategies. The needle in the haystack problem may be viewed in many ways:
A known needle in a known haystack
A known needle in an unknown haystack
An unknown needle in an unknown haystack
Any needle in a haystack
The sharpest needle in a haystack
Most of the sharpest needles in a haystack
All the needles in a haystack
Affirmation of no needles in a haystack
Things like needles in any haystack
Let me know whenever a new needle shows up
Where are the haystacks?
Needles, haystacks -- whatever[from Matthew Koll. "Major Trends and Issues in the Information Industry."
- Work your way up and down the continuum from general to specific
- USE WEDGE WORDS:
"financial ratios" + FAQ
laser printers + features + comparison
"Word 6.0" + tutorial
Hispanics + demographics
"rock music" + encyclopedia
"used cars" + "book value"
catholicism + expert or priest + aska science + announcements
maps + "lesson plans"
cataloging + listserv
audio + "search engine"
patents + database- Sometimes you'll want to restrict your search to narrower universes -- news, images, usenet groups, shopping, your full-text periodical databases, etc.
- Read the help screens to find out how each search engine allows you to search.
- As you pick up information, use it to alter or refine your search.
- When you have a known good document use the "more like this" feature to identify similar resources
- Use quotes around multiple words to search them AS A PHRASE -- "The Name of the Rose"
- Most search engines will also accept + for AND, and - for NOT. Voltaire + revolution - American
- HOWEVER, if you use boolean operators, you will overrule all the efforts the search engine is making at natural language processing, so as a general rule try natural language queries first, and boolean when that doesn't work
Search Engine Experts Links
- Debbie Abilock's Guide to matching your question to the best search engine for that purpose http://www.nueva.pvt.k12.ca.us/~debbie/library/research/adviceengine.html
- Research Buzz http://researchbuzz.com/
- Search Day http://searchenginewatch.com/searchday/ Search tips from Invisible Web guru Chris Sherman. Also available by e-mail
- Search Engine Showdown http://www.searchengineshowdown.com/ -- updates available by e-mail, from Greg Notess
- Search Engine Watch http://searchenginewatch.com/ -- updates available by e-mail, from Danny Sullivan
Tutorials
- Debbie Abilock's Guide to matching your question to the best search engine or directory for that purpose http://www.nueva.pvt.k12.ca.us/~debbie/library/research/adviceengine.html
- Finding Information on the Internet http://www.lib.berkeley.edu/TeachingLib/Guides/Internet/FindInfo.html
- How To Search the Web http://websearch.about.com/cs/howtosearch/
Keeping Current on the Web
- Neat New Stuff I Found This Week http://marylaine.com/neatnew.html
- New Site Announcement Services http://marylaine.com/netnew.html
To practice on a set of search questions with suggested strategies, go to http://marylaine.com/test.html