We all put information into categories whether we realize it or not. Fiction vs. nonfiction. Broadcast vs. print. Magazines vs. books.
The Internet is a computer network, in fact a network of computer networks, upon which anyone who has access to a host computer can publish their own documents.
Publications inform and entertain the general public, publications disseminate research and academic discussion among professionals within disciplines, publications which are neither scholarly nor popular sources. Primary sources are original, uninterested information, Secondary sources interpret, analyze, or summarize, Tertiary sources compile, index, or organize sources.
Format: Data, facts, information, intelligence, and knowledge can be organized.