Dave Winer, founder of Userland and creator of Radio (not to mention Manila and Frontier), struck out on his own a while back. Now he's got a new tool that edits OPML. You're saying "What the heck is OPML?" Its an XML format for outlines (Dave's always been fond of outlines). What can you do with it? Blog for one thing. Zannen, it only works on Windows. Here's a dynamic list of things people are creating with it.