Given the tremendous number of customers online and studies suggesting as many as 85% use Search, their activity can be monitored for insights on customer behavior, offline marketing effectiveness, brand awareness, product interest. Track impressions, click rates, conversion rates, etc. on groups of keywords to monitor how branded keywords perform against generic terms and keep an eye on messaging to understand how marketing from other programs (TV, Print, Radio) resonate with the customer.
Are you doing this now or have questions? Let me know