A couple of days ago my publisher finally allowed me to sell my own ebooks (the Hal Spacejock series) via my site:
http://www.spacejock.com.au/BuyHal.html
4.99 each, DRM free, or 14.99 for all four.
The first was a free download for a couple of years, as discussed on another thread here on mobileread.com, but that's been canned because the ebooks are about to hit Amazon. However, if anyone buys Hal 2, 3 or 4 they should email me and I'll send them a free copy of book 1.)
Cheers
Simon
PS I'm also the guy behind the free yWriter novel-writing software, and the latest Beta version has an export-to-ebook feature:
http://www.spacejock.com/yWriter5_Ebooks.html
I imagine that might be useful to quite a few people publishing their own work.