However, things are messy this year. Like you needed more headaches at tax time, right?
Here's the scoop:
First of all, you cannot go online and grab the 1099-MISC from your Amazon Author Central site. It's not there (although you can download these things from other sites, like Smashwords). Your forms are coming to you via the United States Postal Service, mailed to the address you've given to Amazon. So, if you've moved in the past year or so, check your Amazon account to make sure they have your current address.
Second, you won't get just one 1099-MISC from Amazon. Nope. You'll get one for your ebook sales from Kindle Direct Publishing and you'll get a separate 1099 from CreateSpace.
Third, they are being sent late and some are being sent twice because the first round of IRS 1099s had mistakes in them. Amazon should have sent you an email advising you to disregard the first form and that an amended version was being sent out in mid-February.
Questions? Email Amazon at 1099 [at] amazon.com if you have specific issues. There's also lots of information about taxes and your Amazon publications at their Tax Information resource section.
And, remember: this may be a hassle, but the silver lining is that you've made money from your own writing if you're dealing with 1099 issues here -- so congrats!