I don't see search engines as being 'vaguely related to artificial intelligence' at all.
AI has a certain level of expectation associated with it and I do not see google matching that level in any of their released products.
Computers to date do what we tell them to do. As soon as that changes we call it a bug, not a manifestation of intelligence. As long as that view persists I would argue that we have not yet achieved 'AI'.