The GPL-licensed Pivot blogging software stands out among blogging applications because it requires no database, no extra libraries, and minimal installation effort. While it's still in an early stage of development, its flexibilty and the ease with which it can be set up make it ideal for those new to maintaining their own blogging Web sites.
To use Pivot, you need a server that's running PHP 4.1.0 or higher. Unlike WordPress or Movable Type, Pivot requires no MySQL database; it stores most of its data within XML files. Pivot also strives to use no extra libraries so as to be available and usable by as many people as possible.