See main page for the latest update
Here is the 15 August 2012 report on US Aircraft Carrier and Naval Force Deployments from Stratfor:
Click the image for larger version
Click here for a description at Stratfor. While Stratfor is a subscription service, they will provide a free article if you give them your email address.
Note: "The Naval Update Map shows an approximation of the current locations of U.S. Carrier Strike Groups and Amphibious Ready Groups, based on available open-source information. No classified or operationally sensitive information is included in this weekly update."
I strongly recommend Stratfor as a news source for in-depth analysis of geopolitical events.