Hey Dave, just looked at the site...looks nice and simple...good job.
Here are my thoughts:
1...Your Navigation Menu (on top of page) it might be a nicer effect if you had a menu-border around it.
2...The orange on the bottom of the page, not a good idea...hurts the eyes
3...Under "SCT POPULAR AREAS" the link "More Discussion" is indented in for some reason...
4...Try putting the categories INDUSTRY NEWS, COMMERCIAL SITES, SCT POPULAR AREAS and all in a table...
5...Get rid of the maroon bar under the link: "Six Sigma" in Quality section...
6...The copyright info. should be smaller font...
7...The "Discussion Forum Questions:" section, push that a little further down the page...everything looks so crowded, if you push it down it'd look nicer...
8...Push the top navigation bar a little further down also...
Well that's it for now...
Hope I helped... I have not failed; I merely found 100,000 different ways of not succeding...