I agree with Kaethel - between 7 and 15 is usually about right, depending on the circumstances.
I think it sometimes depends on the story too and how it's structured. When I started posting Masques last year, I used posts of 6 pages. But it just didn't suit the story's pacing - it was going so slowly, barely making each post more than one scene. Often not even one scene. It frustrated my readers and it frustrated me. So I switched to 15 page posts and that was much better.
LabRat (who'll start off the nagging early - get that Muse in gear, Jen
)
