Book Bloggers of Goodreads discussion

Amazon #1 x 5
Just finished an 'experimental' Amazon Select Promotion (free ebook). On the Edge of the Loch reached #1 in five categories - even ones I didn't place it in:
1. Action-Adventure,
2. Sea Adventures,
3. British (Literature),
4. Mystery-Thriller-Suspense,
5. Psychological.
On the Edge of the Loch (http://amzn.to/28RRRdt) is a literary/psychological novel that's hard to pin into one particular category. I know we all say that, but in this case it's a fact.
Nonetheless, I remain somewhat mystified by how all this works - algorithms, ranking, timing, etc.
But getting to #1 comes down (still) to the equivalent of 'bums on seats' - if you can reach and persuade the (right) great masses out there, a certain percentage will act, provided the product merits it.
Having said that, I read a creditable statistic recently that claimed only 10% of books acquired are read to the end.
Irony!
And the learning goes on . . .