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Thursday, March 19, 2009

The Varieties of Search Engines...

Hello guys, we meet again in my new post, today we’re going to talk about some search engines which is available on the net for us to search for information, articles and etc. There are a lot of search engine that we can found nowadays in the net due to the development of the World Wide Web (www). For this post I’m going to talk about the four selected search engines which is Yahoo!, Google Scholar, Mamma.com and last but not list Eric Digest.



What is Yahoo!?

Yahoo is a search engine,subject directory, and web portal. Yahoo provides good search results powered by their own search engine database, along with many other Yahoo search options, such as Yahoo Reference Search, or, for an even more complete list, check out the Ultimate Yahoo Search List, my attempt to write down all in one place all the Yahoo search options. Yahoo: main web portal and general jumping off point. You can access all the big Yahoo search options here, such as Yahoo Mail, Yahoo Music, Yahoo News, etc. Yahoo Search: Yahoo's main page dedicated only to search; you can access this from the web portal as well, but this page offers a more streamlined look. Yahoo Directory: Yahoo's subject directory page. Yahoo is one of the oldest directories on the Web, and this is a very large directory.  Yahoo offers many search options on its search portal page; including the capacity to search the Web, search for images only, search in the Yahoo Directory (this gathers results from the human edited subject directory, as opposed to the main search engine driven results page), search locally,search news, and go shopping.

 

What is Google Scholar?

Google Scholar provides a simple way to broadly search for scholarly literature. From one place, you can search across many disciplines and sources: peer-reviewed papers, theses, books, abstracts and articles, from academic publishers, professional societies, preprint repositories, universities and other scholarly organizations. Google Scholar helps you identify the most relevant research across the world of scholarly research. Google scholar main features is to search diverse sources from one convenient place, find papers, abstracts and citations, locate the complete paper through your library or on the web and learn about key papers in any area of research. Google Scholar aims to sort articles the way researchers do, weighing the full text of each article, the author, the publication in which the article appears, and how often the piece has been cited in other scholarly literature. The most relevant results will always appear on the first page.

What is Mamma.com

Mamma.com is a "smart" metasearch engine — every time you type in a query Mamma simultaneously searches a variety of engines, directories, and deep content sites, properly formats the words and syntax for each, compiles their results in a virtual database, eliminates duplicates, and displays them in a uniform manner according to relevance. It's like using multiple search engines, all at the same time. Created in 1996 as a master's thesis, Mamma.com helped to introduce metasearch to the Internet as one of the first of its kind. Due to its quality results, and the benefits of metasearch, Mamma grew rapidly through word of mouth, and quickly became an established search engine on the Internet. Mamma.com's ability to gather the best search results available from top search sources and to provide useful tools to its users has resulted in its receiving multiple Honourable Mentions in the Best Metasearch category in the annual SearchEngineWatch Awards.

What is ERIC Digests?

ERIC - the Education Resources Information Center - is an online digital library of education research and information. ERIC provides ready access to education literature to support the use of educational research and information to improve practice in learning, teaching, educational decision-making, and research. ERIC contains short reports (1,000 - 1,500 words) on topics of prime current interest in education. There are a large variety of topics covered including teaching, learning, libraries, charter schools, special education, higher education, home schooling, and many more. It is targeted specifically for teachers, administrators, policymakers, and other practitioners, but generally useful to the broad educational community. Besides that, it is designed to provide an overview of information on a given topic, plus references to items providing more detailed information. ERIC is being produced by the former 16 subject-specialized ERIC Clearinghouses, and reviewed by experts and content specialists in the field. It was funded by the Office of Educational Research and Improvement (OERI), of the U.S. Department of Education (ED). The full-text ERIC Digest database contains over 3000 Digests with the latest updates being added to this site in July 2005.

My View

When we says about Yahoo, most of the frequent computer users in this world may know what is that mean. Yahoo has been around from the early days of internet and appears as a famous search engine. Similar to Google, it has other wonderful services such as games, downloads, emails, horoscopes, news, music and the list goes on. In addition, you can look at local weather results, upcoming movies, the Marketplace, and Yahoo International. Yahoo's home page is pretty crowded but it has a lot to offer. I've used Yahoo for many moons now; for their great Yahoo Mail service and for the My Yahoo search options. However, unlike the other search engines, yahoo has an advantage that may help those hazy ones look for the apt information.

Talking about Google Scholar, the obvious different that we can see compared to the other search engine is the categories. There are no categories being provided by this search engine and this somehow makes the job of searching for information or anything that we want to know becomes more complicated and takes the whole day of our time. However it is suitable for scholar suits its name Google Scholar.

Mamma.com is a Meta search engine with a wide range of other web search engines for its results! Like the company’s saying, “The Mother Of All Search Engines”, mamma.com certainly is the central to other search engines available on the net. However, practically speaking, most of us do not have all day to browse through search engines to other search engines. Thus, mamma.com may require one to spend a lot of time browsing through these web engines before arriving to the final destination for results.

There are similarities between Eric Digest and Google Scholar, both of this search engines doesn’t have categories. This factor limited the users to find precise information about what they are searching for because it is not narrowed down according to the categories. Eric Digest is not widely use maybe because of there is not enough exposure to this kind of search engine. Furthermore, it’s only function as an online digital library of education research and information. 

3 comments:

Anonymous said...

If you are looking at ERICdigests.org, you are looking in the wrong place. This is a spoof site that ought to be shut down. The real ERIC is at www.eric.ed.gov

Sol Lederman said...

Hi,

Another type of search engine that you may want to write about is "federated search." These are the engines that search a bunch of scientific and technical sites all at once. Deep Web Technologies, a company I consult for, has built a number of public federated search engines, e.g. science.gov, worldwidescience.org, scitopia.org.

I've writeen quite a bit about federated search at http://federatedsearchblog.com

norizan said...

Good job fudley as now you managed to get comments from others as well. The comments above are valid and no harm searching as recommended