This idea got started because I host with GoDaddy, and I put some of my clients on with GoDaddy, and always pay for a dedicated IP, but I have noticed that my
SEO efforts on Google do not work so well with clients that I host with GoDaddy.
With MSN and Yahoo, it isn't seem to matter.
It is not a coincidence that the list of clients I host with GoDaddy are the clients I am having the most trouble with, on Google. My own sites, however, get great rankings on Google.
As a result, I am looking for hosting alternatives.