I recently learned about a site called eReaderGirl.com which lists currently free and discounted e-books from Amazon. There is a page where you can submit your free or discounted e-book for inclusion in the list: http://ereadergirl.com/submit-your-ebook/ Just something to keep in mind next time you're doing an e-book promotion!

Nice. Thanks, Perry. I'll need to remember that once I have a book...

Awesome, thank you! There are many automated lists that will also snag your book from Amazon, and those can be good promotion. One list I follow only does books with 4 or more starts with at least 10 ratings, to thin it to well-reviewed books.