Bruce Clay has an interesting Search Engine Relationship Chart (in flash) showing which search engines are interconnected. Great for marketeers to figure out who they really should optimize for, and eye-opening to see who’s in bed with whom, in some way, shape or form. You can clearly see who is going up against Google – MSN and Yahoo have no relationship with them at all. One thing to note is that it does not clearly show the relationship between Inktomi and Yahoo.
Search Engine Relationship Chart
