As a newly published author, Online Marketing and subsequent sales are of interest to me.
Especially with the Barnes & Noble group taking on Amazon and taking books off their shelves that were for sale in Amazon stores. My book Pat Canella ( the dockland murders) has been taken up by both firms, leaving me to wonder what will happen.
One thing I have noticed (I am open to contradiction here), is that in my searches for a market, other than WHSmiths and Amazon.co.uk, there is no real sales aimed at the UK marketplace.
Amazon is global. There is a large market here going unplumbed, I just tried to contact Waterstones today to try and get the word out of a new sales fixture in Bookrix.
B&N covers the US/Canada market, their sister group Smashwords has recently opened up a huge marketplace as well. This is the former Soviet block countries & Asia.
The US/Canadian market suits my style of writing as I write a lot of fantasy work.