Sad but true
Google search is going the way of all the old search engines it trounced in its early days. Their hubris generally expressed itself as portalitis, where the race to add features meant that search was generally neglected. Google's hubris manifests as Chrome OS and an appalling lack of respect for its users (and especially its ad customers).
I honestly can't see who would take the crown from here. A web search startup would struggle to get funding ("who are your competitors" "Google" "ah, right - bye then") so maybe we're looking for a rejuvenated Infoseek or something. Hell, even MS are on the ropes enough to get the odd sympathy search from me.