Companies send over samples for various accessories, and I try to highlight some of the better ones for various devices. Case in point: iLuv's Portfolio Stand for Kindle Fire.
It's a nice, trim case that fits snuggly and turns into a stand by unhitching the Fire from the bottom of the case. It's a design we've seen before with iPad cases, and it works better than you'd think.
Drawbacks: this one isn't made of leather (it is very good faux leather, however) and it's fairly expensive at $49.99 (though it can be had online for less than $40).
iLuv makes several accessories for the Fire, including a screen cover and other cases, but the Portfolio Stand gets the highlight image and stamp of approval. We just wish it cost a bit less.