As readers of the mailing list will already know (so subscribe already!), I am now publishing my stories through Smashwords.
I had held off for a long time publishing on Smashwords, simply because of the sheer length of their style guide: it seemed so intimidating. But finally I took the plunge: and it was really easy! Most of my catalogue is up there already, and I will be uploading the rest as and when I get time until everything is there.