Looks like FUNimation and Nico Nico are wasting no time in snatching up titles for streaming. Last Friday, they announced that they'd be streaming the first four episodes of Shakugan no Shana Final on their services beginning that day. I'd imagine this being a pretty great turn of events for those who caught the first two seasons but have no legitimate way of watching the grand finale. While it's unfortunate that the second season never legally found its way out west, at least fans will be able to see how it all ends.
Given that I live on the moon (read as: Japan), I'm sadly incapable of checking out the streams and can't remark on the quality as a result. If any of you beautiful people would like to elaborate on that in the comments, please be my guest.
I'm super curious as to where these two giants are going to look toward next for streaming, but if this is any indication of what's to come, I think we're looking at a very promising future for legal anime streams on the web.