Everyone Likes Blue

So I'm working on a web site and while I generally don't do the graphic design work, I decided that I could help my client by showcasing some of the logos that other companies have used. During my search for good examples I stumbled on an examination of the colors most often used in company logos. [note that the page is gone so I can't link to it any more]

I found this amusing and interesting. Are graphic designers favoring blue and red for a particular reason? Do people really respond so much better to these two colors that there's little reason to consider other colors?

Sadly I have no idea. And I guess I can't fault them since I to have settled on blue as a primary color for this site.