For those of you with ebooks out, have you tried paying for advertising to sell more copies?
I've tried a few things and so far Goodreads and Kindle Nation Daily worked best for me (meaning I actually broke even or better, hah). I write high fantasy, so not the most popular genre.
Here are the write-ups I did on my blog, in case anyone is interested:
Kindle Nation Advertising Results
Goodreads Advertising Results
What have you tried?