The logo could use some work. It looks basic. Also, the logo has a green in it, and that green can not be found elsewhere on the site. Maybe add that same color green to the <a> tag?
The adds make the site seem displaced. The ad on top is seems off from the logo, and the ad on bottom is too wide.
I am not sure if I like this blue on blue setup with white text. It is fine for some sites, but you truly need to add more to it than white, blue, and blue. Like maybe was mentioned before ... add some of the same green that is in the logo into the site.