At first, this idea struck me as something akin to lightbulbs.com. After watching the two-minute promo, though, I want to sign up for blades, invest in the company, and go to work for them! Of course, I expect them to be out of business within a year, but we could have a lot of fun 'til then.
See also: F&*# Everything, We're Doing Five Blades.
via Steve D.