how to contribute tutorial/notebook guide?
I'm nearly done writing a notebook that gives an overview of the Sage polytope commands for people who want to compute a la Gr\"unbuam / Brondsted.
Is there a standard way to make this available to the community? Of course I can just post it on my webpage, but people are less likely to find it there than if it's somehow in some repository somewhere. (True?)
Clarification: I'm talking about a notebook, not a tutorial. I know there are repositories of things---but not how to find them. Example: Sometime in the past I was given a link to some @interacts for stuff like Euler's Method implementation---wait, google found that again---it's at http://wiki.sagemath.org/interact/diffeq---and there must be some central place people can go to find code... right? (No, I know that's probably too much to hope for. But where are people *supposed* to go to find code?)