So, regardless of what you use to create the ebook, where can/should you publish it once it's done? I know you can post it, say, on your blog to download, but w

So, regardless of what you use to create the ebook, where can/should you publish it once it's done? I know you can post it, say, on your blog to download, but what else would you do. (Submit to Amazon, or iBooks, or more?)