What is LinkedIn mainly used for?

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Tags

1. #careers
2. #business
3. #professionals
4. #invasive
5. #networking
6. #network
7. #career
8. #advertising
9. #connect
10. #social
11. #businesses
12. #specifically
13. #million
14. #cultivate
15. #designed
16. #their
17. #other
18. #linkedin
19. #sites