In January 2011, Facebook implemented the Sponsored Stories advertising mechanism, which turned user “likes” into product endorsements. The claim argued that Facebook did not adequately inform its users that profile photos and user names would be used by advertisers to recommend products and services. Read More
Starting on July 22, 2013 all Google AdWords legacy campaigns will automatically be upgraded to the enhanced campaigns.
Google recommends that you do this before the July 22 deadline, so you don't run into any issues with the conversion that you may not have anticipated.
Google is overhauling the way AdWords campaigns are managed (again). We've put together a number of resources to learn about the in's and out's of Google Enhanced Campaigns.