The Web appears to you, the information user, as a collection of documents and links. Regardless of where you begin, the first thing you see is some kind of document. That document contains hypertext links that will lead you to additional information. Links usually appear as underlined or highlighted text. Depending on the client software that you use, you may follow a link by clicking on it with a mouse, selecting it with a cursor, or typing an item number.
Searchable indexes are also available from some information providers.
Since Web clients can read a number of protocols, you can travel seamlessly from document to document, unencumbered by changing formats. From your UNIX or VAX account, type INFO at the system prompt and the first thing you will see is Rutgers University's Home Page. You can start your exploration there. Not by a long shot. This only scratches the surface.