I spotted an interesting post about writing outlines, written by a young blogger I've been following who I think is very talented.
I commented about being on the fence with regard to outlines. I've written outlines with some projects and I haven't with others. For me it all depends on how fast the story is coming, and whether or not I have it outlined in my head...if that makes sense.
And for me it's only with novels. I never use an outline for a short story. Something (or someone) inspires me and I get the idea and run with it, so to speak.
You can get there from here to read the post in full.