Basically, search engine is a program that enable each of us to search for websites on certain information we want. A search engine also shows the various available links to the articles or all sorts of information we are looking for. Apart from that, we are discussing the similarities and the differences between four search engines that are google scholar, mamma.com, eric digest and yahoo.com.
One of the similarities between these four search engine is all the search results are in electronic text form. In order to look for the articles or information needed, we have to access through the internet before we can get those information. Besides that, they do provide the option to find more than web pages, however, using on the top of the search box on the these home page, you can easily seek out information, images, articles etc. from across the web.
In fact, there are differences between these four search engines. 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 to identify the most relevant research across the world of scholarly research.
For Mamma.com, it is a "smart" meta search 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. Meanwhile, 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 Search Engine Watch Awards.
For Eric digest, it is an online digital library of education research and information. Eric is sponsored by the Institute of Education Sciences(IES) of the U.S Department of Education. Thus, eric digest do provide a comprehensive, easy-to-use, searchable, Internet-based bibliographic and full-text database of education research and information. Eric continues to explore new approaches to enhancing and expanding services to the user community. Through collaborative efforts and with feedback provided by the eric user community, the eric program continues to enhance online services, expand access to full-text materials, and increase the number of journal and non-journal sources indexed in the Collection.
As for Yahoo.com, it is the owner of the world's most popular Web site, which takes a more multidimensional approach as it strives to be all things for all people — a one-stop destination for recreation, work and research. Yahoo also takes a more practical approach to technology, first identifying what people want and then building or buying a product designed to give visitors one less reason to leave its Web site — already the world's most popular online destination.
REFLECTIONS: The four search engines offered the differences and the similarities that enable us to access through the information needed. They basically stressed more on academic besides other information like news, games, sports etc. For education purposes, these search engines especially eric digest or google scholar provide 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. Thus, they also designed to provide an overview of information on a given topic plus references to items providing more detailed information.
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