Safari doesn't show titles for click throughs on google search results…
You can use the Detox extension for Safari and Chrome, which fixes this on Google and Twitter.

This happens because Google switched to a client-side redirect for their tracking links (in JavaScript, I think) so the browser thinks the tracking page is the page you wanted. I'm not sure why. Twitter does the same thing, but it's so that they can grab the referer when you click on a t.co link from a client or another website.