A website is a collection of related web resources, such as web pages and multimedia content, that are identified by a common domain name and published on at least one web server. Websites can serve various functions like providing information for individuals, companies, governments, or organizations. Some important educational websites that provide free learning resources for students include SSRN, ACER, ICSSR, ERIC, and Edutopia. These sites offer research papers, online assessments, scholarships, teaching ideas, and other tools and content to support learning.