I have been leading the design of a new Open Source collaboration tool called EditThisPagePHP, which started six months ago and now is in beta. My goal with EditThisPagePHP attempt to come close to Dave Winer's visionary statement back in May of 1999: When I'm writing for the web, and I'm browsing my own site, every bit of text that I create has a button that says Edit This Page when I view it.