This document discusses several academic search engines, including Google Scholar, Microsoft Academic, BASE, CORE, Science.gov, and Research Gate. Google Scholar allows users to find research papers across disciplines and links to PDFs, while Microsoft Academic explores over 38 million publications with trends and graphs. BASE is hosted at Bielefeld University and contains over 100 million academic documents with advanced search. CORE focuses on open access research papers with direct links to full texts. Science.gov provides access to US government science agencies and databases. Research Gate functions as both a social network and search engine for researchers, with over 17 million members and 116 million articles and abstracts uploaded directly to the site.

1. Academic Search Engines
Google scholar /Microsoft academic/Research Gate /Base

2. Search engines
• International Indian search Engine
• Google Ask.com
• AltaVista Khoj.comEcosia
• Yahoo
• Duck Duck Go
• Bing
• Swiss Cows / Ecosia
• Search Encrypt / Internet Achieve

3. Academic Search Engines
• Google Scholar : Academic Search Engine
from house of Google
lets you find research papers for all academic
disciplines and links to full text pdf
You can explore many sources such as books,
dissertations, abstracts
160 million documents – Google scholar

4. Microsoft Academic (MA)
• Lets you explore more 38 million publications .
Best features of MA ; it provides trends ,
graphs and cover approx 240 million articles.

5. BASE Search Engine
• Is hosted at Bielefeld University Germany .
• Site contains academic content from over 100
million documents
• BASE allows advance search options to narrow
research
• Covers 136 million articles

6. CORE – search engine
• Academic Search engine dedicated to open
Access research papers .
• For each search result a link to full text pdf or
full text web page is provided.

7. Science Gov.
• Provides access to more than 15 USA federal
agencies
• Its gateway to US government sciences
• Pulls information from over 60 databases and over 2000
websites
• Operated & maintained by Science & Technical
information, collaborates with worldwidescience.org

8. Research Gate
• Is social Network site for researchers – has a
search engine built in founded in 2008
• Research Gate its not only search engine that pulls from
external sources BUT owns collection of publications
• 17 million researchers submit their work on site for
any one to access to connect to world of science
• Has 116 million articles and Abstract