Big companies hire computer savvy guys to run scripts and  to take pricing from thousands of products from hundreds of competitors so they can undercut them or at least be competitive with them and use their strong brand name.  This might be one of the reasons for this practice.

That is good info...thanks....but I was talking about companies like www.addthis.com and www.sharethis.com

Where they supply additional SEO possibly and also have all the social linked buttons attached that can be put on our landing pages.

Any recommendations for an SEO friendly social sharing button company? Or ones that provide a good service and also actually helps your brand name in SEO?

I think it is important for others to be able to share my pages with colleagues and others.

Thank you,

UtahTiger