PWC manuals are fairly easy to find on the interweb, but manuals for boats are pretty tough.
I bought a premium membership on another See Doo themed site just to get the manuals.
It was a bargain for me, I got the repair manuals I needed. The forum is not very active though so I dropped it after a few months.
I could, however, see myself tossing a few bucks in to support this site, it would be a fraction of the money saved by reading threads on here.