Posted by Lisa Shieh, Inside AdWords crew
As with other targeting options on our Display Network, contextual targeting by topic supports all ad formats, such as text, display, video, and rich media, as well as all our bidding options, such as cost-per-click (CPC), cost-per-thousand-impression (CPM), and cost-per-acquisition (CPA). In addition, you still have access to URL-level reporting and other tools such as the Conversion Optimizer.
