How effective is Google advertising?

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Tags

1. #requires
2. #advertising
3. #successful
4. #sizes
5. #adwords
6. #simply
7. #running
8. #intelligent
9. #expect
10. #companies
11. #large
12. #effective
13. #leads
14. #google
15. #campaign
16. #thanks
17. #throw
18. #methods