Is twitter or Facebook more popular?

Related questions

1. Is Instagram bigger than Twitter?
2. What is Twitter and how does it work?
3. How do you see what's trending on twitter?
4. Are there alternatives to Facebook?
5. What is twitter best for?
6. Why am I not getting a verification code from twitter?
7. Are hashtags important on twitter?
8. Is Facebook safe to use?
9. Should I use my real name on twitter?
10. Does FB own Snapchat?

Tags

1. #photo
2. #surveyed
3. #social
4. #sharing
5. #twitter
6. #results
7. #network
8. #according
9. #teens
10. #these
11. #third
12. #among
13. #facebook
14. #popular
15. #students
16. #after
17. #instagram