Today's independent and self-published authors are always looking for new places to sell their e-books, and while Fictionwise isn't exactly new (quite the opposite, actually, in Net terms), it does provide one more online place to showcase and sell one's work.
For nearly a dozen years, the site Fictionwise has been promoting and selling digital books online, making it one of the oldest online stores for e-books. For the last couple of years the site has been owned by Barnes & Noble, a company obviously invested in digital books and finding readers.
As of this writing, Fictionwise does not offer its own dedicated e-reader device, but what it does offer is free software so user can read digital books on various mobile devices, including many cell phones and e-reader devices from other companies, as well as on personal computers and laptops. One of the great things about Fictionwise is the site offers its e-books in multiple formats, enough so just about any reader can enjoy e-books found on the site.
Currently a new system is being constructed for authors wanting to provide their works on the site, so details about uploading, formats, royalties and payments are somewhat up in the air. Still, all of that will be worked out eventually. In the past, Fictionwise has been known to use Paypal, so it would be logical to guess the site will continue to do so for receiving payments from readers and doling out royalties to authors.
What's important for writers to realize is that Fictionwise is just one more site that can be used to let readers and fans know about your writing.