I’m experimenting with Indie non-fiction for several reasons. It started as a way to disversify my income away from Google Inc. The vast majority of eBooks sell direct from Amazon – so the key is to get books ranking within the Amazon system (the best sellers or, possibly more importantly, to show on the list of “people who bought this book also bought…” for related books).
I’m also aware that Amazon is going from strength to strength with is Kindle eBook reader sales, and with the release of the Kindle 4, Kindle Touch and Kindle Fire in October 2011, sale of eBooks will be huge after Christmas.
I update my sales figures from time-to-time on my Indie Non-Fiction Sales Page