Google added new course to AdWords Online Classroom about Opportunities tab in your AdWords account. The newly added course will help you learn to use Opportunities tab to its full potential. You'll also hear stories from other advertisers who've used Opportunities tab to extend their advertising reach and improve their account performance.
"Opportunities tab, is designed to help you discover ways to potentially improve your campaign's effectiveness by providing keywords, keyword bids, and budget ideas. These ideas are specifically catered for your account based on your campaign's past performance and may help increase your AdWords return on investment."