Apache Tomcat - An open source software implementation of the Java Servlet and JavaServer Pages technologies
Scinapse - Scinapse is a free, nonprofit, Academic search engine for papers, serviced by Pluto Network.
Microsoft IIS - Internet Information Services is a web server for Microsoft Windows
Google Scholar - Google Scholar is a freely accessible web search engine that indexes the full text of scholarly...
Apache HTTP Server - Apache httpd has been the most popular web server on the Internet since April 1996
Scopus - Scopus is a bibliographic database containing abstracts and citations for academic journal articles.