Look fine apart from the main heading text being a little blurred - but I'm nitpicking now.
I would change the font to a more web 2.0 style
like someone said, maybe change the font? otherwise i love the simplicity of the website. however maybe you could have the "how it works" part of the website inside a colored box, along with the "register for free" button? something to draw the eye so it's not so spread out - otherwise it looks veryyyy cool
I like the overall idea of the concept but there seems to be some alignment problems. You need to set this up on a more strict grid and follow it. Right now, to give you an example, the four elements in the header should be extended all the way across the header and the heading should be justified left.