What is double click in Google AdWords?

Related questions

1. Does Google AdWords pay search?
2. Does BidVertiser pay per impression?
3. How do ad words work?
4. How does DoubleClick for Publishers work?
5. What are the uses of AdWords and AdSense?
6. Does Adsense really pay?
7. Do ads work?
8. How much traffic do I need for Adsense?
9. What is the main difference between SEO and SEM?
10. Can I use bidvertiser with AdSense?

Tags

1. #automated
2. #smart
3. #adwords
4. #engine
5. #campaign
6. #allows
7. #across
8. #bidding
9. #doubleclick
10. #sophisticated
11. #automation
12. #features
13. #accounts
14. #level
15. #group
16. #keyword
17. #strategies
18. #google
19. #reporting
20. #search