- The image of a light on the right is not very bright. Consider to move it inside the page or remove it. - The bottom is a big disaster, you should keep it inside the middle and not spread across and over the side bar. - You should make it all centered instead or REMOVE the right bar completely - "This is the place to look for great ideas and solutions pertaining to many types of subjects." <-- What subjects? Without any better details I think many won't bother to even check out more.
There are too much empty space at the bottom, the left column and header does not seem to blend well with the main site which is of white background. It doesn't give an complete integrated web site feeling.
In Firefox (on Ubuntu), the social bookmarking icons are hanging over the black left border, which makes it a bit hard to see. I'd use some CSS and restrict the text and icons to the center whitespace. The icons on the left look pretty cool. I like the title "Idea Cosmo", very clever.
Oh dear... looks like the site looks different on different computers. Thanks so much for the feedback.