mmm coffee
I've been lurking on these forums for a while, and here's a topic I might be able to contribute something useful to.
There's lots of good coffee that can be ordered fresh on the web.
Here's some favorites:
http://www.klatchroasting.com/
They roast 53x11 coffee btw.
http://www.intelligentsiacoffee.com/
http://www.thebestcoffee.com/
These companies ship their beans within in days of roasting. Since the off-gassing of CO2 mentioned above is fairly dramatic the first couple of days after roasting, the beans are best brewed after a "rest" period of a couple days. So if you order off the web from these or similar companies, your likely to get your coffee at it's peak freshness.
If you happen to be in Boulder, Co, then I have to plug Ozo Coffee company.
They're doing an incredible job, but they don't have an e-store yet.
For single origin coffee, I've been really enjoying stuff from Brazil this year.
I also had some Panamanian, and Columbian recently that were really tasty.