That's the site I used for publishing, yes. I moved on to video tutorials, and that site remains for a few folk who still access tutorials online.

I wrote this one on Nuendo for PC Publishing:

http://www.amazon.co.uk/Making-Music-Steinberg-Nuendo-Cooper...

and self-published this one on Cubase:

http://www.amazon.co.uk/Cubase-SX-Complete-Musicians-Referen...

Both are tech books.

I've been writing a novel for a few years. Trashed it twice after twenty-odd thousand words both times. I think that's a good thing, as novel writing is a new skill for me. I'm learning. But I do love tech writing. It's pedantic as hell, but very rewarding when you get it right.