The Wiki Way. Bo Leuf and Ward Cunningham. 2001
"In The Wiki Way (2001), the one and only book devoted solely to wiki, Bo Leuf and Ward Cunningham define wiki as "a freely expandable collection of interlinked Web 'pages,' a hypertext system for storing and modifying information — a database, where each page is easily editable by any user with a forms-capable Web browser client" (page 14). Wiki pages are controlled — created, linked, edited, deleted, moved, renamed, and so on — by a programming or scripting language, and stored either as plain ASCII text files or in an external relational database, such as MySQL, Oracle, or PostgreSQL. Wiki pages are only rendered or displayed as HTML through templates by the wiki Web server. Ward's original wiki was written in Perl, and he released the script as copyright-limited open source."