Remember NoNoWriMo? Yeah, I know, not too good for those of us here that tried. My story is kind of plain. Better luck next year.
The same people have come up with a similar event: write a script (like for a play.or a screenplay, radio play?) of "100 pages" in thirty days.
Site is here: http://www.scriptfrenzy.org/
I am still deciding if I am going to participate. Looks like I'll need a plot ahead of time, which is always a problem. On the positive style, I have discovered that dialog is one of my favorate parts of writing ... and scripts are almost entirely dialog.