It has been quite some time now since Google acquired Zagat, and while we've seen some embedding of reviews and such in the past, Google has now brought Zagat into the fold in a much larger way. Google+ Local has now been introduced making it easier to find Zagat scores and and restaurant suggestions from folks you interact with on Google+. In addition to the Google+ integration roll out, various other Google apps and sites will be updated Zagat support over the next little while, starting with an update to Google Maps that includes a fancy new "Local" button that when tapped, will show you Zagat reviews in your general area. Both Google+ Local and the Google Maps update are live right now, you'll find the Google Maps download below in case you've not already updated as of yet.
Source: Google Blog