New to Twiki? There's no doubt that at first it seems almost the opposite of how the Web and online communications "normally" work.
TWiki operates like a whiteboard for the Web - it lets you and all other users write, place pictures and post links, anywhere on any page.
Not only that, everyone can EDIT anything, anywhere on a page.
At first, this may seem "too" open - it soon becomes second-nature, allowing you the freedom to edit and update the way you want to.
Get started here: http://docs.indymedia.org/view/TWiki/TWikiTutorial#1_Get_set_Resources & Useful Files / Documents