If you've written an ebook priced under $5, consider submitting to the "cheap reads" sites like
http://bargainebooks.blogspot.com/
http://www.thefrugalereader.com/
http://dailycheapreads.com
as well as other indie-friendly blogs:
http://indiefantasywritersunlimited.blogspot.com/
http://spaldings-racket.blogspot.com/
http://www.theindiespotlight.com/
I started adding marketing tips to my blog:
http://fantasyauthor.blogspot.com/ I'm no expert (not even close!) -- these are just things I've been doing. They might help you too.