Does Google AdWords really work?

Related questions

1. What does Eligible mean in Google AdWords?
2. Why is my Google AdWords not showing?
3. Is there a minimum for Google ads?
4. What are conversions in Google AdWords?
5. What is DoubleClick for Advertisers?
6. Why is my Google Ad under review?
7. When did Google AdWords become Google ads?
8. How long does it take for Google ads to live?
9. How much does Google AdWords cost?
10. How long does it take to approve a promotion?

Tags

1. #click
2. #product
3. #nutshell
4. #their
5. #someone
6. #google
7. #clicks
8. #known
9. #people
10. #searching
11. #company
12. #notice
13. #advertising
14. #whenever
15. #business
16. #adwords
17. #those